Options to Address Social Security Solvency and Their Impact on Beneficiaries: Results from the Dynasim Microsimulation Model--Detailed Distributional Tables






Prepared for Members and Committees of Congress









This report presents detailed tables showing the distributional effects of 12 Social Security
solvency options on Social Security beneficiaries in 2035 compared with current law.
The 12 options presented fall into 6 categories of reform proposals. For some reform options, we
present two or more variations on how they could be approached. They include the most
commonly discussed or introduced proposals to improve cash flow and achieve Social Security
solvency:
• reducing the annual cost of living adjustment (COLA)
• increasing the number of computation years in the benefit formula
• increasing the full retirement age (FRA)
• longevity indexing initial Social Security benefits
• progressive price indexing initial Social Security benefits
• increasing earnings subject to Social Security payroll taxes by raising or
eliminating the taxable earnings base.
These tables provide the modeling results used to produce the full analysis of these options
contained in a companion report, CRS Report RL33840, Options to Address Social Security
Solvency and Their Impact on Beneficiaries: Results from the Dynasim Microsimulation Model.
That report presents the distributional effects of these reform options in terms of Social Security
beneficiaries’ median payroll tax increase or benefit reduction and shows the varied effect of
these reforms on beneficiaries along certain socio-economic lines (i.e., age, type of benefit
received, and income quintile). Those readers interested in a complete explanation of these results
are encouraged to read that report.
The tables contained in this report provide some additional detail not included in the previously
mentioned report. The first table for each option summarizes the effect of the policy change on
beneficiaries in 2035 across socio-economic groups (i.e., by gender, ethnicity, educational
attainment, age, marital status, benefit type, and income quintile). These tables show the number
in the population, the mean percent change in benefits or taxes between current law and the
policy option, and the median percent change in benefits or taxes between current law and the
policy option. Subsequent tables show the varied effects of these reforms on beneficiaries in 2035
overall and then within each socio-economic group (i.e., gender, ethnicity, educational attainment,
age, marital status, benefit type, and income quintile).
CRS analysts used the Dynasim microsimulation model to project the effects of these reforms on
Social Security beneficiaries in 2035, assuming the reforms first take effect in 2013.
This report will not be updated.






Introduc tion ..................................................................................................................................... 1
Interpreting the Results...................................................................................................................2
Why These Options?...........................................................................................................2
When Would the Options Begin?........................................................................................3
How Far Into the Future Does This Analysis Look?...........................................................3
What Do the Tables Show?.................................................................................................4
How to Read the Tables......................................................................................................6
Why Do Some of the Results Seem Counterintuitive?.......................................................7
Who Is Included in the Analysis?.......................................................................................7
How Does Dynasim Estimate Future Benefits?..................................................................8
Where Can Readers Find Out More?..................................................................................8
Option 1: Reducing the Annual Cost of Living Adjustment (COLA) by Half a Percentage
Point .......................................................................................................................... ................... 9
Option 2: Reducing the Annual COLA by One Percentage Point.................................................14
Option 3: Increasing the Number of Computation Years in the Benefit Formula From 35
to 38 for All Beneficiaries..........................................................................................................19
Option 4: Increasing the Number of Computation Years in the Benefit Formula From 35
to 38 For All But Disability Beneficiaries..................................................................................24
Option 5: Increasing the Number of Computation Years in the Benefit Formula From 35
to 40 for All Beneficiaries..........................................................................................................30
Option 6: Increasing the Number of Computation Years in the Benefit Formula From 35
to 40 for All But Disability Beneficiaries...................................................................................35
Option 7: Increasing the Full Retirement Age (FRA) by Accelerating the Increase From
Age 66 to Age 67 Scheduled Under Current Law and Further Increasing the FRA From
Age 67 to Age 70........................................................................................................................41
Option 8: Longevity Indexing Initial Social Security Benefits by Reducing the Primary
Insurance Amount (PIA) Formula Factors.................................................................................46
Option 9: Longevity Indexing Initial Social Security Benefits by Reducing the PIA Value
and Holding Disability Beneficiaries Harmless Until They Reach the FRA.............................52
Option 10: Progressive Price Indexing Initial Social Security Benefits........................................57
Option 11: Increasing Earnings Subject to Social Security Payroll Taxes by Raising the
Dollar Amount of the Taxable Earnings Base to 100% of Aggregate Covered Earnings
in the U.S. (Eliminating the Taxable Earnings Base).................................................................62
Option 12: Increasing Earnings Subject to Social Security Payroll Taxes by Raising the
Dollar Amount of the Taxable Earnings Base to 90% of Aggregate Covered Earnings in
the U.S........................................................................................................................................77
Table 1. Reduce the COLA by Half a Percentage Point: Summary of Mean and Median
Percentage Change in Benefits in 2035........................................................................................9





Table 2. Reduce the COLA by Half a Percentage Point: Distribution by Impact in 2035............10
Table 3. Reduce the COLA by Half a Percentage Point: Distribution by Gender in 2035............10
Table 4. Reduce the COLA by Half a Percentage Point: Distribution by Ethnicity in 2035..........11
Table 5. Reduce the COLA by Half a Percentage Point: Distribution by Education Level
in 2035.........................................................................................................................................11
Table 6. Reduce the COLA by Half a Percentage Point: Distribution by Age in 2035.................12
Table 7. Reduce the COLA by Half a Percentage Point: Distribution by Marital Status in
2035 ............................................................................................................................................ 12
Table 8. Reduce the COLA by Half a Percentage Point: Distribution by Benefit Type in
2035 ............................................................................................................................................ 13
Table 9. Reduce the COLA by Half a Percentage Point: Distribution by Income Quintile
in 2035........................................................................................................................................13
Table 10. Reduce the COLA by One Percentage Point: Summary of Mean and Median
Percentage Change in Benefits in 2035......................................................................................14
Table 11. Reduce the COLA by One Percentage Point: Distribution by Impact in 2035..............15
Table 12. Reduce the COLA by One Percentage Point: Distribution by Gender in 2035.............15
Table 13. Reduce the COLA by One Percentage Point: Distribution by Ethnicity in 2035..........16
Table 14. Reduce the COLA by One Percentage Point: Distribution by Education Level in
2035 ............................................................................................................................................ 16
Table 15. Reduce the COLA by One Percentage Point: Distribution by Age in 2035..................17
Table 16. Reduce the COLA by One Percentage Point: Distribution by Marital Status in
2035 ............................................................................................................................................ 17
Table 17. Reduce the COLA by One Percentage Point: Distribution by Benefit Type in
2035 ............................................................................................................................................ 18
Table 18. Reduce the COLA by One Percentage Point: Distribution by Income Quintile in
2035 ............................................................................................................................................ 18
Table 19. Increase the Number of Computation Years to 38 for All Beneficiaries:
Summary of Mean and Median Percentage Change in Benefits in 2035...................................19
Table 20. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Impact in 2035..................................................................................................20
Table 21. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Gender in 2035..................................................................................................21
Table 22. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Ethnicity in 2035...............................................................................................21
Table 23. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Education Level in 2035...................................................................................21
Table 24. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Age in 2035.......................................................................................................22
Table 25. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Marital Status in 2035.......................................................................................22





Table 26. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Benefit Type in 2035.........................................................................................23
Table 27. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Income Quintile in 2035...................................................................................23
Table 28. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Summary of Mean and Median Percentage Change in Benefits in 2035............24
Table 29. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Impact in 2035...........................................................................25
Table 30. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Gender in 2035...........................................................................26
Table 31. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Ethnicity in 2035........................................................................26
Table 32. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Education Level in 2035............................................................27
Table 33. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Age in 2035................................................................................27
Table 34. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Marital Status in 2035................................................................28
Table 35. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Benefit Type in 2035..................................................................28
Table 36. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Income Quintile in 2035............................................................29
Table 37. Increase the Number of Computation Years to 40 for All Beneficiaries:
Summary of Mean and Median Percentage Change in Benefits in 2035...................................30
Table 38. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Impact in 2035..................................................................................................31
Table 39. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Gender in 2035..................................................................................................32
Table 40. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Ethnicity in 2035...............................................................................................32
Table 41. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Education Level in 2035...................................................................................32
Table 42. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Age in 2035.......................................................................................................33
Table 43. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Marital Status in 2035.......................................................................................33
Table 44. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Benefit Type in 2035.........................................................................................34
Table 45. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Income Quintile in 2035...................................................................................34
Table 46. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Summary of Mean and Median Percentage Change in Benefits in 2035............35





Table 47. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Impact in 2035...........................................................................36
Table 48. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Gender in 2035...........................................................................37
Table 49. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Ethnicity in 2035........................................................................37
Table 50. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Education Level in 2035............................................................38
Table 51. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Age in 2035................................................................................38
Table 52. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Marital Status in 2035................................................................39
Table 53. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Benefit Type in 2035..................................................................39
Table 54. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Income Quintile in 2035............................................................40
Table 55. Increase the Full Retirement Age: Summary of Mean Percentage Change in
Benefits in 2035.........................................................................................................................41
Table 56. Increase the Full Retirement Age: Distribution by Impact in 2035...............................42
Table 57. Increase the Full Retirement Age: Distribution by Gender in 2035..............................42
Table 58. Increase the Full Retirement Age: Distribution by Ethnicity in 2035...........................43
Table 59. Increase the Full Retirement Age: Distribution by Education Level in 2035................43
Table 60. Increase the Full Retirement Age: Distribution by Age in 2035....................................44
Table 61. Increase the Full Retirement Age: Distribution by Marital Status in 2035....................44
Table 62. Increase the Full Retirement Age: Distribution by Benefit Type in 2035.....................44
Table 63. Increase the Full Retirement Age: Distribution by Income Quintile in 2035................45
Table 64. Index the PIA Formula Factors for Longevity: Summary of Mean and Median
Percentage Change in Benefits in 2035......................................................................................46
Table 65. Index the PIA Formula Factors for Longevity: Distribution by Impact in 2035...........47
Table 66. Index the PIA Formula Factors for Longevity: Distribution by Gender in 2035...........48
Table 67. Index the PIA Formula Factors for Longevity: Distribution by Ethnicity in 2035........48
Table 68. Index the PIA Formula Factors for Longevity: Distribution by Education Level
in 2035........................................................................................................................................49
Table 69. Index the PIA Formula Factors for Longevity: Distribution by Age in 2035................49
Table 70. Index the PIA Formula Factors for Longevity: Distribution by Marital Status in
2035 ............................................................................................................................................ 50
Table 71. Index the PIA Formula Factors for Longevity: Distribution by Benefit Type in
2035 ............................................................................................................................................ 50
Table 72. Index the PIA Formula Factors for Longevity: Distribution by Income Quintile
in 2035........................................................................................................................................51





Table 73. Index the PIA Value for Longevity: Summary of Mean and Median Percentage
Change in Benefits in 2035........................................................................................................52
Table 74. Index the PIA Value for Longevity: Distribution by Impact in 2035.............................53
Table 75. Index the PIA Value for Longevity: Distribution by Gender in 2035............................53
Table 76. Index the PIA Value for Longevity: Distribution by Ethnicity in 2035.........................54
Table 77. Index the PIA Value for Longevity: Distribution by Education Level in 2035.............54
Table 78. Index the PIA Value for Longevity: Distribution by Age in 2035.................................55
Table 79. Index the PIA Value for Longevity: Distribution by Marital Status in 2035.................55
Table 80. Index the PIA Value for Longevity: Distribution by Benefit Type in 2035...................56
Table 81. Index the PIA Value for Longevity: Distribution by Income Quintile in 2035..............56
Table 82. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Summary of Mean and Median Percentage Change in Benefits in 2035...................................57
Table 83. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Impact in 2035..................................................................................................58
Table 84. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Gender in 2035..................................................................................................58
Table 85. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Ethnicity in 2035...............................................................................................59
Table 86. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Education Level in 2035...................................................................................59
Table 87. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Age in 2035.......................................................................................................60
Table 88. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Marital Status in 2035.......................................................................................60
Table 89. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Benefit Type in 2035.........................................................................................61
Table 90. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Income Quintile in 2035...................................................................................61
Table 91. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary of
Mean and Median Percentage Change in Benefits for Individuals Who Pay No
Additional Taxes Over Their Lifetime in 2035...........................................................................62
Table 92. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary of
Mean and Median Percentage Change in Benefits for Individuals Who Pay Additional
Taxes Over Their Lifetime in 2035.............................................................................................63
Table 93. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary of
Mean and Median Percentage Change in Benefits for the Total Population in 2035................65
Table 94. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Benefits for the Total Population by Impact in 2035..........................66
Table 95. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Benefits for the Total Population by Gender in 2035.........................66
Table 96. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Benefits for the Total Population by Ethnicity in 2035......................67





Table 97. Increase the Taxable Earnings Base to Tax All Covered Earnings of the Total
Population: Distribution of Percentage Change in Benefits for the Total Population by
Education Level in 2035............................................................................................................67
Table 98. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Benefits for the Total Population by Age in 2035..............................68
Table 99. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Benefits for the Total Population by Marital Status in 2035..............68
Table 100. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Benefits for the Total Population by Benefit Type in 2035................69
Table 101. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Benefits for the Total Population by Income Quintile in 2035...........69
Table 102. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary of
Mean and Median Percentage Change in Taxes Paid for Individuals Who Pay No
Additional Taxes Over their Lifetime in 2035............................................................................70
Table 103. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary of
Mean and Median Percentage Change in Taxes Paid for Individuals Who Pay
Additional Taxes Over their Lifetime in 2035............................................................................71
Table 104. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Taxes Paid for the Total Population in 2035.......................................72
Table 105. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Taxes Paid for the Total Population by Gender in 2035.....................73
Table 106. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Taxes Paid for the Total Population by Ethnicity in 2035..................73
Table 107. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Taxes Paid for the Total Population by Education Level in
2035 ............................................................................................................................................ 74
Table 108. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Taxes Paid for the Total Population by Age in 2035..........................74
Table 109. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Taxes Paid for the Total Population Marital Status in 2035...............75
Table 110. Increase the Taxable Earnings Base to Tax All Covered Earning: Distribution
of Percentage Change in Taxes Paid for the Total Population by Benefit Type in 2035............75
Table 111. Increase the Taxable Earnings Base to Tax All Covered Earnings: Distribution
of Percentage Change in Taxes Paid for the Total Population by Income Quintile in
2035 ............................................................................................................................................ 76
Table 112. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Benefits for Individuals Who Pay
No Additional Taxes Over their Lifetime in 2035.......................................................................77
Table 113. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Benefits for Individuals Who Pay
Additional Taxes Over Their Lifetime in 2035...........................................................................78
Table 114. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Benefits for Total Population in

2035............................................................................................................................................80





Table 115. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Impact in 2035.........81
Table 116. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Gender in 2035.........81
Table 117. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Ethnicity in
2035 ............................................................................................................................................ 82
Table 118. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Education
Level in 2035..............................................................................................................................82
Table 119. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Age in 2035..............83
Table 120. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Marital Status
in 2035........................................................................................................................................83
Table 121. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Benefit Type in
2035 ............................................................................................................................................ 84
Table 122. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Income Quintile
in 2035........................................................................................................................................84
Table 123. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Taxes Paid for Individuals Who
Pay No Additional Taxes Over Their Lifetime in 2035...............................................................85
Table 124. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Taxes Paid for Individuals Who
Pay Additional Taxes Over Their Lifetime in 2035....................................................................86
Table 125. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Impact in
2035 ............................................................................................................................................ 87
Table 126. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Gender in
2035 ............................................................................................................................................ 88
Table 127. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Ethnicity in
2035 ............................................................................................................................................ 88
Table 128. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Education
Level in 2035..............................................................................................................................88
Table 129. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Age in 2035..........89
Table 130. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Marital
Status in 2035.............................................................................................................................90





Table 131. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Benefit Type
in 2035........................................................................................................................................90
Table 132. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Income
Quintile in 2035..........................................................................................................................90
Table C-1. Retirement Earnings Test Application Rules...............................................................96
Appendix A. Computation of the Primary Insurance Amount (PIA) Under Current Law............92
Appendix B. Interaction of Spouse and Aged Survivor Benefit Rules with Policy Options.........94
Appendix C. Interaction of the Retirement Earnings Test with Policy Options............................96
Appendix D. Technical Description of the Progressive Price Indexing Option............................99
Appendix E. Background on the Urban Institute’s Dynasim Microsimulation Model...............101
Appendix F. Glossary..................................................................................................................105
Author Contact Information.........................................................................................................110






This report presents detailed tables showing the distributional effects of 12 Social Security 1
solvency options on Social Security beneficiaries in 2035 compared with current law. The
options presented are
1. Reducing the annual cost of living adjustment (COLA) by half a percentage point
2. Reducing the annual COLA by one percentage point
3. Increasing the number of computation years in the benefit formula from 35 to 38 for all
beneficiaries
4. Increasing the number of computation years in the benefit formula from 35 to 38 for all but
disability beneficiaries
5. Increasing the number of computation years in the benefit formula from 35 to 40 for all
beneficiaries
6. Increasing the number of computation years in the benefit formula from 35 to 40 for all but
disability beneficiaries
7. Increasing the full retirement age (FRA) by accelerating the increase from age 66 to age 67
scheduled under current law and further increasing the FRA from age 67 to age 70
8. Longevity indexing initial Social Security benefits by reducing the Primary Insurance Amount
(PIA) formula factors
9. Longevity indexing initial Social Security benefits by reducing the PIA value and holding
disability beneficiaries harmless until they reach the FRA
10. Progressive price indexing initial Social Security benefits
11. Increasing earnings subject to Social Security payroll taxes by raising the dollar amount of the
taxable earnings base to 100% of aggregate covered earnings in the U.S. (eliminating the
taxable earnings base)
12. Increasing earnings subject to Social Security payroll taxes by raising the dollar amount of the
taxable earnings base to 90% of aggregate covered earnings in the U.S.
These tables provide the modeling results used to produce the full analysis of these options
contained in a companion report, CRS Report RL33840, Options to Address Social Security
Solvency and Their Impact on Beneficiaries: Results from the Dynasim Microsimulation Model.

1 Those unfamiliar with the Social Security reform debate or the Social Security program may wish to first read the
following reports: CRS Report RL33544, Social Security Reform: Current Issues and Legislation, by Dawn Nuschler;
CRS Report 94-27, Social Security: Brief Facts and Statistics, by Gary Sidor; and, CRS Report RL32279, Primer on
Disability Benefits: Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI), by Scott
Szymendera.





That report presents the distributional effects of these reform options in terms of Social Security
beneficiaries’ median payroll tax increase or benefit reduction and shows the varied effect of
these reforms on beneficiaries along certain socio-economic lines (i.e., age, type of benefit
received, and income quintile). Those readers interested in a complete explanation of these results
are encouraged to read that report.
The tables contained in this report provide some additional detail not included in the previously
mentioned report. The first table for each option summarizes the effect of the policy change on
beneficiaries in 2035 across socio-economic groups (i.e., by gender, ethnicity, educational
attainment, age, marital status, benefit type, and income quintile). These tables show the number
of people in the population, the mean percent change in benefits or taxes between current law and
the policy option, and the median percent change in benefits or taxes between current law and the
policy option. Subsequent tables show the varied effects of these reforms on beneficiaries in 2035
overall and then within each socio-economic group (i.e., gender, ethnicity, educational attainment,
age, marital status, benefit type, and income quintile).
The options presented below include the most commonly discussed or introduced proposals to
improve cash flow and achieve Social Security solvency. CRS takes no position for or against any 2
of the options presented in this report. The presentation of options in the report moves from least
complex to most complex. The ordering of the 12 options, and the assumptions used in their
analysis, reflect no policy recommendations or preferences on the part of CRS. For some reform
options, we present two or more variations on how they could be approached. Each option would
affect beneficiaries differently. This report assumes that all of the options take effect in 2013 and
shows the distributional impact of each option in 2035 using results from the Dynasim 3
microsimulation model. The Dynasim model is not an actuarial model and so cannot produce
solvency estimates for these options.

The primary rationale for all of the options in this report is to improve the solvency of the Social
Security system. All of the options would enhance long-range solvency by either cutting benefits
or increasing payroll taxes. There are also secondary rationales behind most of the options—for
example, some would reward longer working careers or account for increases in longevity.
The options in this report include the most commonly discussed or introduced proposals to
improve cash flow and achieve Social Security solvency. Each option in this report is analyzed in
isolation, but it is important to note that the options are typically proposed in combination with
one another and/or with other Social Security reform features (such as individual accounts or

2 Some solvency options, such as increasing the Social Security coverage of state and local government workers,
altering the taxation of Social Security benefits, or investing a portion of the Social Security surplus in equities, cannot
currently be modeled in this version of Dynasim. Therefore, these options are not included among the options analyzed
in this report.
3 For additional information on the Dynasim microsimulation model, please see Appendix E.





benefit enhancements for low earners).4 The options analyzed in this report can be viewed as a set
of building blocks for comprehensive Social Security reform.
All of the options in this report are assumed to be implemented starting in 2013. The year 2013
was chosen since many policymakers have indicated a desire to leave the benefits of individuals
who are currently age 55 or older unchanged, since they would have little time to alter their
savings, work, or retirement plans. With the exception of the option to increase the full retirement
age, none of the options presented in this report are phased in gradually over time. Any of the
options could be implemented before or after 2013, or could be phased in gradually.
This analysis aims to compare all of the reform options using consistent assumptions and under
identical circumstances. However, for some options, all beneficiaries would be affected starting
in 2013, including those who became eligible for benefits before 2013 (e.g., reducing the COLA).
For other options, only new beneficiaries—those who become eligible for benefits in 2013 or
later—would be affected (e.g., progressive price indexing initial Social Security benefits). These
differences are dictated by the nature of the reform options themselves and the particular Social
Security program rules affected by these reform options.
This report focuses on the effects of policy changes on beneficiaries in 2035. The tables presented
are essentially a snapshot of the projected beneficiary population in this single year. Focusing on
a different year would lead to different results.
The year 2035 was selected for this analysis because it balances two competing goals. The first
goal is to allow a sufficient amount of time to pass for the differing effects of the policy options to
become clear once the new policies are implemented. Since all of the options are assumed to
begin in 2013, by 2035 most beneficiaries would be affected. An earlier date may not capture the
disparate effects of the options, particularly for those options with relatively small annual
changes. The second goal is to provide the most reliable information possible. Since it is
impossible to accurately predict the future, all projection models contain some level of
uncertainty. The further into the future one projects, the greater the estimates may ultimately
deviate from reality. The most accurate data are the actual observations that exist when the
projection period began. The youngest individuals eligible to receive retirement benefits in 2035
would have been born in the early 1970s, and so actual data would be included in the model’s
projection of their retirement benefits. Extending the analysis to periods much later than 2035
would rely more heavily on the model’s assumptions about future trends.
Under some of the options, not all beneficiaries in 2035 would be affected. This is because some
of the options apply only to beneficiaries who become eligible for benefits in 2013 or later (e.g.,
progressive price indexing). For these options, the analysis in 2035 will show a sizable group of
beneficiaries who are not subject to the change since they became eligible for benefits before
2013. Because the proportion of beneficiaries who become eligible for benefits before 2013

4 Combining any of the options with one another or with other features could significantly alter their distributional
impacts. Thus, it is not possible to sum the results of any combination of options shown in this report since the options
could interact in unexpected ways.





varies significantly by socio-economic characteristics, the date of implementation drives many of
the results in 2035, particularly the results by age.
Results shown for 2035 also do not reflect the full impact of the options over time. The effect of
some options increases over time (e.g., longevity indexing). Under these options, each successive
cohort of beneficiaries would be affected more than the last, so that a beneficiary who becomes
eligible 50 years after implementation would be affected much more than a beneficiary who
becomes eligible in the first year, all other things being equal. For other options, the magnitude of
the benefit change does not increase over time (e.g., increasing the number of computation years).
Under these options, each successive cohort of beneficiaries would be subject to the same rules,
so that a beneficiary who becomes eligible 50 years after implementation would experience the
same magnitude of change as a beneficiary who becomes eligible in the first year, all other things
being equal. Since the tables in this report focus on a single year, these distinctions are not shown.
The first table for each option breaks down the effect of the policy change on beneficiaries in
2035 by gender, ethnicity, educational attainment, age, marital status, benefit type, and income
quintile. (For more information on income quintiles, please see the subsection below called 5
“Breakdowns by Income Quintile.”). These tables show the number of people in the population,
the mean percent change, and the median percent change in benefits between current law and the 6
policy option. Since Dynasim projects a representative sub-sample of the population, the number
of observations in the model must be weighted (in this case multiplied by a constant) so that the
numbers total the entire population. Population numbers in the tables are presented in thousands.
The mean, or average, is determined by adding all the values in a data set and dividing the sum by
the number of values in the data set. The median is the midpoint in a group of values, such that
half the values are above the median and half are below. Unlike a mean, a median will not be
skewed by a small number of extremely large or extremely small values. For example, consider
five beneficiaries affected by a policy option. One loses her entire benefit under the option
(meaning she has a change of -100%). The other four beneficiaries have benefit changes of -3%,
-2%, -2%, and -1%, compared with current law. The median percentage change for this group
would be -2% because -2% is the third value of the five values arranged from least to greatest.
The mean percentage change would be -22% because it is the sum of all five values divided by
five. Since policy changes sometimes result in very large benefit changes (such as beneficiaries
gaining or losing a benefit) for a few beneficiaries, the median is a good measure of how a policy
would affect a typical beneficiary. For both the mean and median percent change in benefits,
numbers have been rounded to the nearest full percentage point.
The results for each option include tables that show the overall distribution of the estimated
benefit change for all beneficiaries as well as for beneficiaries broken down by gender, ethnicity,
educational attainment, age, marital status, benefit type, and income quintile. For example, the

5 In this version of Dynasim, each observation had a weight of 2,517.3811. Thus, 10 raw observations would be shown
as about 25,000 individuals in the tables presented. All projected population numbers are rounded to the nearest
thousand.
6 The report compares benefits under each option to scheduled benefits under current law. Some other analyses
compare benefits under policy options to payable benefits, or the level of benefits that could be funded with current
funding levels. However, the 2005 Trustees Report (on which this analysis is based) projects that the trust funds will
remain solvent until 2041. Since the analysis in this report focuses on 2035, scheduled benefits and payable benefits
would be the same amount.





tables show what proportion of beneficiaries in each of the five income quintiles have benefit
reductions of up to -10%, reductions from -10% to -19%, etc.
Every attempt has been made to be consistent in the presentation of the results of the analysis.
The same benefit reduction categories have been used in all tables across the various reform
options so as not to skew the results. Furthermore, the tables for all of the options include the
entire Dynasim population, with one exception. For the options to raise or eliminate the taxable
earnings base, the report contains additional separate tables describing the mean and median
impact for only those beneficiaries who would be affected by the option and for only those
beneficiaries who would pay no additional taxes. These additional breakdowns are presented
since a relatively small share of beneficiaries would be affected by the options to raise or
eliminate the taxable earnings base. Tables that include the entire Dynasim population for these
options show that the median beneficiary in each subgroup is not affected.
All of the options include tables in the report that break down the beneficiary population by the
type of Social Security benefits they receive. Four types of Social Security beneficiaries are
presented in this report: retired worker beneficiaries who receive a Social Security benefit based
on their own earnings; disabled worker beneficiaries who receive a Social Security disability
benefit based on their own earnings; spouse beneficiaries who receive a Social Security
retirement benefit based on their working spouse’s earnings; and, survivor beneficiaries who
receive Social Security survivor benefits based on their deceased spouse’s earnings. Some
individuals may qualify for more than one type of benefit.
In the tables that follow, the retired worker only category and the disability only category are
made up of beneficiaries who receive solely a retired or disabled worker benefit, not a spouse or
survivor benefit. The survivor category and the spouse category include both beneficiaries who
receive solely spouse or survivor benefits as well as those who receive both a spouse or survivor
benefit and a retired or disabled worker benefit (i.e., dually entitled beneficiaries). The disability
benefit only category includes both beneficiaries receiving disability benefits in 2035 and those
who originally received disability benefits but automatically converted to retirement benefits at
the full retirement age (as required by law).
All of the policy options include tables in the report that break down the beneficiary population
by age group. These categories reflect beneficiaries’ ages as of 2035. It is important to note that
beneficiaries in the age 61 and younger category are primarily disability beneficiaries but also
include some aged survivor beneficiaries who began to receive benefits at age 60 or 61. (Other
Social Security beneficiaries who are eligible to receive benefits before age 60—such as children
of retired, disabled, or deceased workers—are not included in the analysis in this report.) For
retirement beneficiaries, the earliest age of eligibility is age 62. Thus, no retirement beneficiaries
are included in the age 61 and younger category.
All of the policy options include tables in the report that break down the beneficiary population
by income quintile. In other words, they separate the Dynasim population into five equal parts—





the one-fifth with the highest incomes, the one-fifth with the second-highest incomes, etc., down
to the one-fifth with the lowest income. For the purposes of this analysis, income includes Social
Security benefits, Supplemental Security Income (SSI) benefits, pension payments, earnings, and
the annuitized value of financial assets. Income is calculated on a per capita basis, which means
that for married couples the income of both spouses is averaged together.
It is important to note the distinction between income levels and Social Security benefit amounts.
Some beneficiaries with relatively low Social Security benefit amounts may be included in one of
the higher income quintiles and vice versa. For example, a beneficiary married to a person with a
high income may be in one of the higher income quintiles despite receiving a small Social
Security benefit. Similarly, a beneficiary with a relatively large Social Security benefit but with
no other income may be in one of the lower income quintiles.
There are three types of tables presented in this report: The first shows the mean and median
changes under the policy option across socio-economic groups; the second shows the overall
distribution of benefit or tax changes in the population; and the third shows the distribution of
benefit or tax changes within each socio-economic group.
The first table for each option summarizes the effect of the policy change on beneficiaries in 2035
across socio-economic groups (i.e., by gender, ethnicity, educational attainment, age, marital
status, benefit type, and income quintile). These tables show the number in the population, the
mean percent change in benefits or taxes between current law and the policy option, and the
median percent change in benefits or taxes between current law and the policy option.
For example, if a reader is interested in the average benefit reduction caused by reducing the
COLA by half a percentage point, he or she should turn to Table 1. The first row (labeled “All”)
shows the total number in the population in thousands (e.g., the total population for Table 1 is
80,362,000). The first row also shows the mean change in benefits overall (-6%) and median
change in benefits overall (-6%). In other words, it shows that among the 80 million beneficiaries
in the Dynasim population, reducing the COLA by half a percentage point would result in a mean
benefit reduction of 6% and also a median benefit reduction of 6%. (The mean and the median
may vary for other options.)
Table 1 also shows the mean and median change in benefits for each socio-economic group (i.e.,
by gender, ethnicity, educational attainment, age, marital status, benefit type, and income
quintile). For example, the second and third rows of Table 1 show a breakdown by gender.
Females make up the majority of the population (i.e., there are 43,566,000 females wompared
with 36,766,000 males). Females and males have the same mean benefit reduction (6%). Males
have a smaller median benefit reduction (5%) than do females (6%).
The second table for each option show how the effects of each reform vary among the overall
population. This table shows the number and percent of the population, broken down by the
magnitude of the change in benefits. For example, the table shows the number and percent of





beneficiaries whose benefits would be reduced by 20% or more, then the number and percent of
beneficiaries whose benefits would be reduced by 10% to 19%, and so forth.
For example, if a reader is interested in knowing whether the cuts caused by reducing the COLA
by half a percentage point are spread equally across the entire sample, he or she should turn to
Table 2. Table 2 shows that a small number of beneficiaries (103,000 people, or less than 0.5%)
would have benefit reductions of 20% or more. A larger number (14,973,000 people, or about
19%) have benefit reductions of 10% to 19%. Most beneficiaries (63,232,000 people, or about
79%) would have benefit reductions of up to 10%. The last two columns in Table 2 show the
cumulative number and percent of beneficiaries.
The subsequent tables for each option show the varied effects of these reforms on beneficiaries in

2035 within each socio-economic group (i.e., gender, ethnicity, educational attainment, age,


marital status, benefit type, and income quintile).
For example, if a reader is interested in knowing how the cuts caused by reducing the COLA by
half a percentage point are distributed by gender, he or she should turn to Table 3. There, the
reader could see that the majority of both females and males would have a benefit cut of up to
10% (i.e., 75% of females and 83% of males). The reader could also see that females are more
likely than males to receive a cut that is greater than 10% (i.e., 23% of females and 14% of
males). The percentages in each horizontal row add up to 100%.
Sometimes the results shown in this report may be unexpected. For example, an option to cut
Social Security benefits could result in a small number of beneficiaries receiving an increase in
their benefits. Such counterintuitive results are not errors, but interactions between the option and
the current law Social Security rules. For example, the interaction between the current law
retirement earnings test (RET) and certain options to reduce benefits leads to benefit increases for
some beneficiaries who were subject to the RET before reaching the full retirement age, but are
currently older than the full retirement age. (For a full explanation of how this interaction works,
please see Appendix C.)
One of the advantages of a microsimulation model such as Dynasim is that it brings unexpected
interactions between policy options and program rules to light. Social Security is a complex
program, and changes to its structure could result in unintended consequences.
The results presented in this report focus on individuals who are projected to receive Social
Security retired worker, spouse, aged survivor and/or disability benefits in 2035. However, the
Dynasim population does not include individuals who are projected to receive other types of
Social Security benefits, including the children of retired, disabled, or deceased workers,
surviving spouses under age 60 with a child in care, and the aged parents of deceased workers.





The Dynasim model estimates future Social Security benefits by using a mix of historical data
and projections. The historical data—which include actual beneficiaries’ earnings, marital
histories, Social Security benefits, and more—come from the Survey of Income and Program
Participation (SIPP), the Current Population Survey (CPS), the Panel Study of Income Dynamics
(PSID), and other sources. Using the historical data as a base, Dynasim projects future economic
and demographic patterns by using the 2005 Social Security Trustees’ official assumptions about
future trends as well as statistical methods that take into account individual beneficiaries’
characteristics. When interpreting the results of Dynasim or any other model, it is important to
note that projections are inherently imprecise; the further into the future one looks, the wider the
range of possible outcomes. (For a full explanation, please see Appendix E.)
A full written analysis of all 12 policy options is available in CRS Report RL33840, Options to
Address Social Security Solvency and Their Impact on Beneficiaries: Results from the Dynasim
Microsimulation Model. For each reform option, that report explains current Social Security
policy, reasons why some policymakers propose this particular type of reform, how the reform
proposal works, the distributional effects of the reform proposal on various types of Social
Security beneficiaries, and legislation related to the reform being analyzed. That report presents
the distributional effects of these reform options in terms of Social Security beneficiaries’ median
payroll tax increase or benefit reduction and shows the varied effect of these reforms on
beneficiaries along certain socio-economic lines (i.e., age, type of benefit received, and income
quintile). That report, however, does not contain detailed analysis of the effects of these reforms
on Social Security beneficiaries by gender, ethnicity, educational attainment, or marital status.
When interpreting the distributional results of these reform options, it is important for the reader
to have a solid understanding of Social Security program rules, technical details, and terminology.
Detailed explanations of certain Social Security program rules and their potential interactions
with policy options, along with an explanation of how the Dynasim model works and a glossary
of Social Security and technical terms may be found in the following appendices of the report:
• Appendix A, “Computation of the Primary Insurance Amount (PIA) Under
Current Law”
• Appendix B, “Interaction of Spouse and Aged Survivor Benefit Rules with
Policy Options”
• Appendix C, “Interaction of the Retirement Earnings Test with Policy Options”
Appendix D, “Technical Description of the Progressive Price Indexing Option”
• Appendix E, “Background on the Urban Institute’s Dynasim Model”
• Appendix F, “Glossary.”







Table 1. Reduce the COLA by Half a Percentage Point: Summary of Mean and
Median Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -6 -6
Gender
Female 43,596 -6 -6
Male 36,766 -6 -5
Ethnicity
White non-Hispanic 54,217 -6 -6
Black non-Hispanic 8,494 -6 -5
Native American 413 -6 -5
Asian 5,354 -6 -5
Hispanic 11,885 -5 -5
Education Level (highest level completed)
Did not graduate high school 9,531 -6 -6
High school graduate 27,253 -6 -6
Some college 18,525 -6 -6
College graduate 25,053 -6 -6
Age
61 or younger 5,639 -4 -3
62—66 13,888 -3 -1
67—70 14,558 -4 -3
71—75 16,844 -6 -5
76—80 13,979 -8 -8
81—85 9,171 -10 -10
86 or older 6,283 -10 -11
Marital Status
Married 41,023 -5 -5
Widowed 17,808 -8 -9
Divorced 11,789 -6 -6
Never married 9,742 -5 -5
Benefit Type - Current Law
Retired worker only 46,274 -5 -5
Spouse 6,842 -6 -6





Number Mean Median
(000s)
Survivor 12,139 -9 -10
Disability only 15,107 -6 -6
Income Quintile
Lowest quintile 16,071 -6 -6
Second quintile 16,073 -6 -6
Third quintile 16,071 -6 -6
Fourth quintile 16,073 -6 -5
Highest quintile 16,073 -6 -5
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 2. Reduce the COLA by Half a Percentage Point: Distribution by Impact in
2035
Percentage Number Percent Cumulative Number Cumulative
Change Category (000s) (000s) Percent
-20% or more 103 0 103 0
-10% to -19% 14,973 19 15,077 19
Up to -10% 63,232 79 78,308 97
No change 1,911 2 80,219 100
Up to 10% 143 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 3. Reduce the COLA by Half a Percentage Point: Distribution by Gender in
2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to Percent
more -10% -10% change 10%
Female 0 23 75 2 0 100
Male 0 14 83 3 100
Total number 103 14,973 63,232 1,911 143 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.





Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 4. Reduce the COLA by Half a Percentage Point: Distribution by Ethnicity in
2035
Percentage Change Category Total
-20% or -19% to Up to No Up to Total
more -10% -10% change 10% percent
White non-
Hispanic 0 20 78 2 0 100
Black non-Hispanic 0 19 77 4 0 100
Native American 0 15 82 2 0 100
Asian 0 16 81 3 100
Hispanic 0 14 83 0 100
Total number 103 14,973 63,232 1,911 143 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 5. Reduce the COLA by Half a Percentage Point: Distribution by Education
Level in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to Percent
more -10% -10% change 10%
Did not graduate high
school 0 20 77 3 0 100
High school graduate 0 20 77 3 0 100
Some college 0 19 79 2 0 100
College graduate or
higher 0 17 81 2 0 100
Total number (000s) 103 14,973 63,232 1,911 143 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 6. Reduce the COLA by Half a Percentage Point: Distribution by Age in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
61 or younger 0 12 78 9 0 100
62—66 1 4 85 10 100
67—70 0 96 0 0 100
71—75 0 7 93 100
76—80 0 13 87 0 0 100
81—85 0 45 55 100
86 or older 0 96 4 0 0 100
Total number 103 14,973 63,232 1,911 143 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 7. Reduce the COLA by Half a Percentage Point: Distribution by Marital Status
in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Married 0 10 86 3 0 100
Widowed 0 40 59 1 100
Divorced 0 17 80 2 0 100
Never married 0 15 81 3 0 100
Total number 103 14,973 63,232 1,911 143 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 8. Reduce the COLA by Half a Percentage Point: Distribution by Benefit Type
in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Retired worker
only 0 9 88 3 0 100
Spouse 0 11 86 1 1 100
Survivor 0 50 50 0 0 100
Disability only 0 25 71 4 0 100
Total number 103 14,973 63,232 1,911 143 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 9. Reduce the COLA by Half a Percentage Point: Distribution by Income
Quintile in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Lowest quintile 0 24 74 2 0 100
Second quintile 0 20 78 2 0 100
Third quintile 0 18 80 2 0 100
Fourth quintile 0 16 81 3 0 100
Highest quintile 0 16 82 2 0 100
Total number 103 14,973 63,232 1,911 143 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.







Table 10. Reduce the COLA by One Percentage Point: Summary of Mean and
Median Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -11 -11
Gender
Female 43,596 -12 -12
Male 36,766 -11 -10
Ethnicity
White non-Hispanic 54,217 -12 -12
Black non-Hispanic 8,494 -11 -10
Native American 413 -11 -10
Asian 5,354 -11 -10
Hispanic 11,885 -10 -9
Education Level (highest level completed)
Did not graduate high school 9,531 -11 -11
High school graduate 27,253 -12 -11
Some college 18,525 -12 -12
College graduate or higher 25,053 -11 -11
Age
61 or younger 5,639 -8 -6
62—66 13,888 -5 -3
67—70 14,558 -7 -7
71—75 16,844 -11 -10
76—80 13,979 -15 -14
81—85 9,171 -18 -19
86 or older 6,283 -20 -20
Marital Status
Married 41,023 -10 -9
Widowed 17,808 -15 -17
Divorced 11,789 -11 -11
Never married 9,742 -10 -9
Benefit Type - Current Law
Retired worker only 46,274 -10 -9
Spouse 6,842 -11 -11





Number Mean Median
(000s)
Survivor 12,139 -16 -19
Disability only 15,107 -11 -11
Income Quintile
Lowest quintile 16,071 -12 -12
Second quintile 16,073 -11 -11
Third quintile 16,071 -11 -11
Fourth quintile 16,073 -11 -10
Highest quintile 16,073 -12 -11
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 11. Reduce the COLA by One Percentage Point: Distribution by Impact in
2035
Percentage Number Percent Cumulative Number Cumulative
Change Category (000s) (000s) Percent
-20% or more 12,967 16 12,967 16
-10% to -19% 32,527 40 45,494 57
Up to -10% 32,822 41 78,316 97
No change 1,906 2 80,221 100
Up to 10% 141 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 12. Reduce the COLA by One Percentage Point: Distribution by Gender in
2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Female 20 41 37 2 0 100
Male 12 40 45 3 100
Total number
(000s) 12,967 32,527 32,822 1,906 141 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.





Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 13. Reduce the COLA by One Percentage Point: Distribution by Ethnicity in
2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
White non-
Hispanic 17 42 39 2 0 100
Black non-Hispanic 17 36 43 4 0 100
Native American 14 39 45 2 0 100
Asian 14 39 43 3 100
Hispanic 12 37 48 0 100
Total number
(000s) 12,967 32,527 32,822 1,906 141 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 14. Reduce the COLA by One Percentage Point: Distribution by Education
Level in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Did not graduate high
school 18 37 42 3 0 100
High school graduate 18 40 39 3 0 100
Some college 16 43 39 2 0 100
College graduate or
higher 14 40 43 2 0 100
Total number (000s) 12,967 32,527 32,822 1,906 141 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 15. Reduce the COLA by One Percentage Point: Distribution by Age in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
61 or younger 11 24 55 9 0 100
62—66 4 10 76 10 100
67—70 3 11 85 0 0 100
71—75 6 56 37 100
76—80 10 87 2 0 0 100
81—85 31 67 1 100
86 or older 94 5 1 0 0 100
Total number 12,967 32,527 32,822 1,906 141 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 16. Reduce the COLA by One Percentage Point: Distribution by Marital Status
in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Married 9 40 49 3 0 100
Widowed 35 45 19 1 0 100
Divorced 15 42 40 2 100
Never married 14 34 48 3 0 100
Total number 12,967 32,527 32,822 1,906 141 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 17. Reduce the COLA by One Percentage Point: Distribution by Benefit Type
in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Retired worker
only 8 42 48 3 0 100
Spouse 8 47 44 1 1 100
Survivor 44 43 12 0 0 100
Disability only 23 33 40 4 0 100
Total number 12,967 32,527 32,822 1,906 141 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 18. Reduce the COLA by One Percentage Point: Distribution by Income
Quintile in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Lowest quintile 21 40 36 2 0 100
Second quintile 17 41 39 2 0 100
Third quintile 15 42 41 2 0 100
Fourth quintile 14 40 44 3 0 100
Highest quintile 14 40 44 2 0 100
Total number 12,967 32,527 32,822 1,906 141 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.








Table 19. Increase the Number of Computation Years to 38 for All Beneficiaries:
Summary of Mean and Median Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -3 -2
Gender
Female 43,596 -3 -2
Male 36,766 -3 -3
Ethnicity
White non-Hispanic 54,217 -3 -2
Black non-Hispanic 8,494 -3 -3
Native American 413 -2 -2
Asian 5,354 -4 -3
Hispanic 11,885 -4 -3
Education Level (highest level completed)
Did not graduate high school 9,531 -3 -3
High school graduate 27,253 -3 -3
Some college 18,525 -3 -2
College graduate or higher 25,053 -3 -2
Age
61 or younger 5,639 -3 -3
62—66 13,888 -5 -3
67—70 14,558 -3 -3
71—75 16,844 -3 -3
76—80 13,979 -3 -2
81—85 9,171 -2 -2
86 or older 6,283 0 0
Marital Status
Married 41,023 -3 -3
Widowed 17,808 -2 -2
Divorced 11,789 -3 -3
Never married 9,742 -3 -3





Number Mean Median
(000s)
Benefit Type - Current Law
Retired worker only 46,274 -3 -3
Spouse 6,842 -3 -2
Survivor 12,139 -2 -1
Disability only 15,107 -3 -3
Income Quintile
Lowest quintile 16,071 -3 -3
Second quintile 16,073 -3 -3
Third quintile 16,071 -3 -3
Fourth quintile 16,073 -3 -2
Highest quintile 16,073 -2 -2
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 20. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Impact in 2035
Cumulative Cumulative
Percentage Change Category Number (000s) Percent Number Percent
(000s)
-20% or more 272 0 272 0
-10% to -19% 254 0 526 1
Up to -10% 65,830 82 66,356 83
No change 13,964 17 80,320 100
Up to 10% 43 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 21. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Gender in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Female 0 0 78 21 0 100
Male 0 86 13 100
Total number 272 254 65,830 13,964 43 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 22. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Ethnicity in 2035
Percentage Change Category Total
-20% or more -19% to -10% Up to -10% No change Up to 10% percent
White non-Hispanic 0 0 81 19 0 100
Black non-Hispanic 0 0 81 18 0 100
Native American 0 1 84 15 0 100
Asian 1 0 84 15 100
Hispanic 0 86 13 0 100
Total number (000s) 272 254 65,830 13,964 43 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 23. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Education Level in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Did not graduate high school 0 0 81 19 0 100
High school graduate 0 0 81 19 0 100
Some college 0 0 82 18 0 100





Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
College graduate 0 0 84 15 0 100
Total number (000s) 272 254 65,830 13,964 43 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 24. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Age in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
61 or younger 0 0 88 12 0 100
62—66 2 2 93 3 100
67—70 0 0 95 5 0 100
71—75 0 92 8 100
76—80 0 0 88 12 0 100
81—85 0 66 33 100
86 or older 0 0 5 95 0 100
Total number (000s) 272 254 65,830 13,964 43 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 25. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Marital Status in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Married 0 0 89 10 0 100
Widowed 0 62 37 100
Divorced 0 0 83 16 0 100
Never married 0 0 85 14 0 100
Total number 272 254 65,830 13,964 43 80,362
(000s)
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.





Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 26. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Benefit Type in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Retired worker
only 1 1 91 8 0 100
Spouse 0 0 89 11 100
Survivor 0 53 47 0 100
Disability only 0 0 76 24 0 100
Total number
(000s) 272 254 65,830 13,964 43 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 27. Increase the Number of Computation Years to 38 for All Beneficiaries:
Distribution by Income Quintile in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Lowest quintile 0 0 78 22 0 100
Second quintile 0 0 82 18 0 100
Third quintile 0 0 84 16 0 100
Fourth quintile 1 1 84 15 0 100
Highest quintile 1 1 83 16 0 100
Total number
(000s) 272 254 65,830 13,964 43 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.








Table 28. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Summary of Mean and Median Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -2 -2
Gender
Female 43,596 -2 -2
Male 36,766 -2 -2
Ethnicity
White non-Hispanic 54,217 -2 -2
Black non-Hispanic 8,494 -2 -2
Native American 413 -2 -1
Asian 5,354 -3 -3
Hispanic 11,885 -3 -2
Education Level (highest level completed)
Did not graduate high school 9,531 -2 -2
High school graduate 27,253 -2 -2
Some college 18,525 -2 -2
College graduate or higher 25,053 -2 -2
Age
61 or younger 5,639 0 0
62—66 13,888 -4 -3
67—70 14,558 -2 -2
71—75 16,844 -2 -2
76—80 13,979 -2 -2
81—85 9,171 -2 -1
86 or older 6,283 0 0
Marital Status
Married 41,023 -3 -2
Widowed 17,808 -2 -1
Divorced 11,789 -2 -2
Never married 9,742 -2 -1





Number Mean Median
(000s)
Benefit Type - Current Law
Retired worker only 46,274 -3 -3
Spouse 6,842 -2 -2
Survivor 12,139 -1 0
Disability only 15,107 0 0
Income quintile - CL
Lowest quintile 16,071 -2 -2
Second quintile 16,073 -2 -2
Third quintile 16,071 -2 -2
Fourth quintile 16,073 -2 -2
Highest quintile 16,073 -2 -1
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 29. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Impact in 2035
Cumulative Cumulative
Percentage Change Category Number (000s) Percent Number Percent
(000s)
-20% or more 274 0 274 0
-10% to -19% 274 0 549 1
Up to -10% 53,527 67 54,076 67
No change 26,128 33 80,204 100
Up to 10% 159 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 30. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Gender in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Female 0 0 65 34 0 100
Male 0 69 30 100
Total number
(000s) 274 274 53,527 26,128 159 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 31. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Ethnicity in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
White non-Hispanic 0 0 68 31 0 100
Black non-Hispanic 0 0 59 40 0 100
Native American 0 1 67 32 1 100
Asian 1 0 69 29 0 100
Hispanic 0 1 65 34 100
Total number
(000s) 274 274 53,527 26,128 159 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 32. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Education Level in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Did not graduate high
school 0 0 55 44 0 100
High school graduate 0 0 63 36 0 100
Some college 0 0 70 29 0 100
College graduate or
higher 0 0 72 27 0 100
Total number (000s) 274 274 53,527 26,128 159 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 33. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Age in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
61 or younger 0 0 3 97 0 100
62—66 2 2 73 23 100
67—70 0 0 83 17 0 100
71—75 0 81 18 100
76—80 0 0 82 18 0 100
81—85 0 64 36 100
86 or older 0 0 4 96 0 100
Total number
(000s) 274 274 53,527 26,128 159 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 34. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Marital Status in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Married 0 0 75 24 0 100
Widowed 0 54 46 100
Divorced 0 0 66 33 0 100
Never married 0 0 55 44 0 100
Total number
(000s) 274 274 53,527 26,128 159 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 35. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Benefit Type in 2035
Percentage Change Category
Total
-20% or -19% to Up to No Up to percent
more -10% -10% change 10%
Retired worker
only 1 1 91 8 0 100
Spouse 0 0 86 13 1 100
Survivor 0 45 55 0 100
Disability only 0 0 0 100 0 100
Total number
(000s) 274 274 53,527 26,128 159 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 36. Increase the Number of Computation Years to 38 for All But Disability
Beneficiaries: Distribution by Income Quintile in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Lowest quintile 0 0 59 41 0 100
Second quintile 0 0 61 38 0 100
Third quintile 0 0 67 33 0 100
Fourth quintile 1 1 71 28 0 100
Highest quintile 1 1 75 23 0 100
Total number
(000s) 274 274 53,527 26,128 159 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.








Table 37. Increase the Number of Computation Years to 40 for All Beneficiaries:
Summary of Mean and Median Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -5 -4
Gender
Female 43,596 -5 -4
Male 36,766 -5 -4
Ethnicity
White non-Hispanic 54,217 -4 -4
Black non-Hispanic 8,494 -5 -5
Native American 413 -4 -4
Asian 5,354 -6 -6
Hispanic 11,885 -6 -5
Education Levels (highest level completed)
Did not graduate high school 9,531 -6 -5
High school graduate 27,253 -5 -4
Some college 18,525 -5 -4
College graduate or higher 25,053 -4 -4
Age
61 or younger 5,639 -5 -5
62—66 13,888 -8 -6
67—70 14,558 -5 -5
71—75 16,844 -5 -4
76—80 13,979 -4 -4
81—85 9,171 -3 -3
86 or older 6,283 0 0
Marital Status
Married 41,023 -5 -5
Widowed 17,808 -3 -3
Divorced 11,789 -5 -4
Never married 9,742 -5 -5





Number Mean Median
(000s)
Benefit Type - Current Law
Retired worker only 46,274 -5 -5
Spouse 6,842 -4 -4
Survivor 12,139 -3 -2
Disability only 15,107 -4 -5
Income Quintile - CL
Lowest quintile 16,071 -5 -5
Second quintile 16,073 -5 -5
Third quintile 16,071 -5 -4
Fourth quintile 16,073 -5 -4
Highest quintile 16,073 -4 -3
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 38. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Impact in 2035
Cumulative Cumulative
Percentage Change Category Number (000s) Percent Number Percent
(000s)
-20% or more 430 1 430 1
-10% to -19% 2,882 4 3,313 4
Up to -10% 63,843 79 67,156 84
No change 13,171 16 80,327 100
Up to 10% 35 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 39. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Gender in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Female 1 4 75 20 0 100
Male 1 3 85 12 100
Total number
(000s) 430 2,882 63,843 13,171 35 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 40. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Ethnicity in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
White non-Hispanic 0 2 80 17 0 100
Black non-Hispanic 1 5 77 17 0 100
Native American 0 4 83 13 0 100
Asian 1 6 79 14 100
Hispanic 1 8 79 12 0 100
Total number
(000s) 430 2,882 63,843 13,171 35 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 41. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Education Level in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Did not graduate high
school 0 11 71 18 0 100
High school graduate 1 4 78 18 0 100
Some college 0 3 80 17 0 100





Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
College graduate or
higher 1 2 84 14 0 100
Total number (000s) 430 2,882 63,843 13,171 35 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 42. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Age in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
61 or younger 0 5 84 11 0 100
62—66 3 8 86 3 100
67—70 0 3 93 4 0 100
71—75 0 90 7 100
76—80 0 3 86 11 0 100
81—85 0 2 66 32 100
86 or older 0 0 5 95 0 100
Total number
(000s) 430 2,882 63,843 13,171 35 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 43. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Marital Status in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Married 1 4 87 8 0 100
Widowed 0 2 61 37 100
Divorced 1 4 80 15 0 100





Never married 0 5 80 14 0 100
Total number
(000s) 430 2,882 63,843 13,171 35 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 44. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Benefit Type in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Retired worker
only 1 4 87 8 0 100
Spouse 0 3 90 7 100
Survivor 0 1 52 47 0 100
Disability only 0 4 73 24 0 100
Total number
(000s) 430 2,882 63,843 13,171 35 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 45. Increase the Number of Computation Years to 40 for All Beneficiaries:
Distribution by Income Quintile in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Lowest quintile 0 11 67 22 0 100
Second quintile 0 2 80 18 0 100
Third quintile 0 1 83 15 0 100
Fourth quintile 1 2 83 14 0 100
Highest quintile 1 2 84 14 0 100
Total number
(000s) 430 2,882 63,843 13,171 35 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.








Table 46. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Summary of Mean and Median Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -4 -3
Gender
Female 43,596 -4 -3
Male 36,766 -4 -3
Ethnicity
White non-Hispanic 54,217 -3 -3
Black non-Hispanic 8,494 -4 -3
Native American 413 -3 -2
Asian 5,354 -5 -5
Hispanic 11,885 -4 -4
Education Level (highest level completed)
Did not graduate high school 9,531 -4 -3
High school graduate 27,253 -4 -3
Some college 18,525 -4 -3
College graduate or higher 25,053 -4 -3
Age
61 or younger 5,639 0 0
62—66 13,888 -6 -5
67—70 14,558 -4 -4
71—75 16,844 -4 -4
76—80 13,979 -4 -4
81—85 9,171 -3 -2
86 or older 6,283 0 0
Marital Status
Married 41,023 -4 -4
Widowed 17,808 -3 -2
Divorced 11,789 -4 -3
Never married 9,742 -3 -3





Number Mean Median
(000s)
Benefit Type - Current Law
Retired worker only 46,274 -5 -5
Spouse 6,842 -4 -3
Survivor 12,139 -2 0
Disability only 15,107 0 0
Income Quintile
Lowest quintile 16,071 -4 -4
Second quintile 16,073 -4 -4
Third quintile 16,071 -4 -3
Fourth quintile 16,073 -4 -3
Highest quintile 16,073 -4 -3
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 47. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Impact in 2035
Cumulative Cumulative
Percentage Change Category Number (000s) Percent Number Percent
(000s)
-20% or more 428 1 428 1
-10% to -19% 2,278 3 2,706 3
Up to -10% 51,478 64 54,184 67
No change 26,045 32 80,229 100
Up to 10% 133 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 48. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Gender in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Female 0 3 62 34 0 100
Male 1 67 30 100
Total number
(000s) 428 2,278 51,478 26,045 133 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 49. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Ethnicity in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
White non-Hispanic 0 2 67 31 0 100
Black non-Hispanic 1 4 55 40 0 100
Native American 0 2 66 32 1 100
Asian 1 6 64 29 0 100
Hispanic 1 59 34 100
Total number
(000s) 428 2,278 51,478 26,045 133 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 50. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Education Level in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Did not graduate high
school 0 8 48 44 0 100
High school graduate 1 3 60 36 0 100
Some college 0 2 68 29 0 100
College graduate 1 1 71 27 0 100
Total number (000s) 428 2,278 51,478 26,045 133 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 51. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Age in 2035
Percentage Change Category
-20% or -19% to Up to No Up to Total percent
more -10% -10% change 10%
61 or younger 0 0 3 97 0 100
62—66 3 7 67 23 100
67—70 0 3 80 17 0 100
71—75 0 79 18 100
76—80 0 2 80 18 0 100
81—85 0 62 36 100
86 or older 0 0 4 96 0 100
Total number
(000s) 428 2,278 51,478 26,045 133 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 52. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Marital Status in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Married 1 3 72 24 0 100
Widowed 0 2 52 45 100
Divorced 1 3 64 32 0 100
Never married 0 3 52 44 0 100
Total number
(000s) 428 2,278 51,478 26,045 133 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 53. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Benefit Type in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Retired worker
only 1 4 87 8 0 100
Spouse 0 2 84 12 1 100
Survivor 0 1 44 55 0 100
Disability only 0 0 0 100 0 100
Total number
(000s) 428 2,278 51,478 26,045 133 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 54. Increase the Number of Computation Years to 40 for All But Disability
Beneficiaries: Distribution by Income Quintile in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Lowest Quintile 0 8 50 41 0 100
Second Quintile 0 1 60 38 0 100
Third Quintile 0 1 66 33 0 100
Fourth Quintile 1 2 69 28 0 100
Highest Quintile 1 1 74 23 0 100
Total number
(000s) 428 2,278 51,478 26,045 133 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.









Table 55. Increase the Full Retirement Age: Summary of Mean Percentage Change in
Benefits in 2035
Number Mean Median
(000s)
All 80,362 -2 -2
Gender
Female 43,596 -2 -1
Male 36,766 -2 -2
Ethnicity
White non-Hispanic 54,217 -2 -2
Black non-Hispanic 8,494 -2 -1
Native American 413 -2 -1
Asian 5,354 -2 -2
Hispanic 11,885 -2 -2
Education Status (highest level completed)
Did not graduate high school 9,531 -2 -1
High school graduate 27,253 -2 -1
Some college 18,525 -2 -2
College graduate or higher 25,053 -2 -2
Age
61 or younger 5,639 0 0
62—66 13,888 -5 -4
67—70 14,558 -2 -3
71—75 16,844 -1 -2
76—80 13,979 -2 -2
81—85 9,171 -2 -1
86 or older 6,283 0 0
Marital Status
Married 41,023 -3 -2
Widowed 17,808 -1 0
Divorced 11,789 -2 -2
Never married 9,742 -2 -1





Number Mean Median
(000s)
Benefit Type - Current Law
Retired worker only 46,274 -3 -3
Spouse 6,842 -2 -2
Survivor 12,139 0 0
Disability only 15,107 0 0
Income Quintile
Lowest quintile 16,071 -2 -1
Second quintile 16,073 -2 -1
Third quintile 16,071 -2 -2
Fourth quintile 16,073 -2 -2
Highest quintile 16,073 -3 -2
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 56. Increase the Full Retirement Age: Distribution by Impact in 2035
Cumulative Cumulative
Percentage Change Category Number (000s) Percent Number Percent
(000s)
-20% or more 360 0 360 0
-10% to -19% 461 1 821 1
Up to -10% 48,744 61 49,565 62
No change 28,784 36 78,348 97
Up to 10% 2,014 3 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 57. Increase the Full Retirement Age: Distribution by Gender in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Female 0 0 59 38 2 100
Male 1 1 63 33 3 100
Total number
(000s) 360 461 48,744 28,784 2,014 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.





Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 58. Increase the Full Retirement Age: Distribution by Ethnicity in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
White non-Hispanic 0 1 61 35 3 100
Black non-Hispanic 1 1 55 42 2 100
Native American 0 1 57 40 2 100
Asian 1 64 32 3 100
Hispanic 0 1 60 37 2 100
Total number
(000s) 360 461 48,744 28,784 2,014 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 59. Increase the Full Retirement Age: Distribution by Education Level in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Did not graduate high
school 0 0 51 46 1 100
High school graduate 0 1 58 40 2 100
Some college 0 1 64 32 3 100
College graduate or
higher 1 1 65 30 4 100
Total number (000s) 360 461 48,744 28,784 2,014 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 60. Increase the Full Retirement Age: Distribution by Age in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
61 or younger 0 0 1 99 0 100
62—66 3 3 71 23 100
67—70 0 0 82 18 0 100
71—75 0 76 23 100
76—80 0 0 62 24 14 100
81—85 0 58 42 0 100
86 or older 0 0 1 99 0 100
Total number
(000s) 360 461 48,744 28,784 2,014 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 61. Increase the Full Retirement Age: Distribution by Marital Status in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Married 1 1 70 26 3 100
Widowed 0 0 43 54 2 100
Divorced 1 1 61 35 100
Never married 0 1 52 45 2 100
Total number
(000s) 360 461 48,744 28,784 2,014 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 62. Increase the Full Retirement Age: Distribution by Benefit Type in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Retired worker
only 1 1 85 9 4 100
Spouse 0 0 81 17 2 100





Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Survivor 0 0 30 68 1 100
Disability only 0 0 0 100 0 100
Total number
(000s) 360 461 48,744 28,784 2,014 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 63. Increase the Full Retirement Age: Distribution by Income Quintile in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Lowest quintile 0 0 56 43 1 100
Second quintile 0 0 57 41 2 100
Third quintile 0 0 60 37 2 100
Fourth quintile 1 1 63 31 3 100
Highest quintile 1 1 66 27 4 100
Total number
(000s) 360 461 48,744 28,784 2,014 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.








Table 64. Index the PIA Formula Factors for Longevity: Summary of Mean and
Median Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -6 -5
Gender
Female 43,596 -5 -5
Male 36,766 -6 -6
Ethnicity
White non-Hispanic 54,217 -5 -5
Black non-Hispanic 8,494 -6 -5
Native American 413 -5 -6
Asian 5,354 -6 -6
Hispanic 11,885 -6 -6
Education Level (highest level completed)
Did not graduate high school 9,531 -5 -5
High school graduate 27,253 -5 -5
Some college 18,525 -5 -5
College graduate or higher 25,053 -6 -5
Age
61 or younger 5,639 -7 -8
62—66 13,888 -12 -10
67—70 14,558 -7 -8
71—75 16,844 -5 -5
76—80 13,979 -3 -3
81—85 9,171 -1 -1
86 or older 6,283 0 0
Marital Status
Married 41,023 -6 -6
Widowed 17,808 -3 -2
Divorced 11,789 -6 -5
Never married 9,742 -6 -6





Number Mean Median
(000s)
Benefit Type - Current Law
Retired worker only 46,274 -7 -6
Spouse 6,842 -5 -5
Survivor 12,139 -2 -1
Disability only 15,107 -5 -5
Income Quintile
Lowest quintile 16,071 -5 -4
Second quintile 16,073 -5 -5
Third quintile 16,071 -5 -5
Fourth quintile 16,073 -6 -5
Highest quintile 16,073 -7 -6
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 65. Index the PIA Formula Factors for Longevity: Distribution by Impact in
2035
Cumulative Cumulative
Percentage Change Category Number (000s) Percent Number Percent
(000s)
-20% or more 982 1 982 1
-10% to -19% 5,211 7 6,193 8
Up to -10% 60,963 76 67,156 84
No change 13,176 16 80,332 100
Up to 10% 30 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 66. Index the PIA Formula Factors for Longevity: Distribution by Gender in
2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Female 1 6 73 20 0 100
Male 2 8 79 12 100
Total number
(000s) 982 5,211 60,963 13,176 30 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 67. Index the PIA Formula Factors for Longevity: Distribution by Ethnicity in
2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
White non-Hispanic 1 6 76 17 0 100
Black non-Hispanic 2 9 73 17 0 100
Native American 1 5 81 13 0 100
Asian 2 6 78 14 100
Hispanic 1 9 78 12 0 100
Total number
(000s) 982 5,211 60,963 13,176 30 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 68. Index the PIA Formula Factors for Longevity: Distribution by Education
Level in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Did not graduate high
school 1 8 74 18 0 100
High school graduate 1 7 75 18 0 100
Some college 1 6 77 17 0 100
College graduate or
higher 2 7 78 14 0 100
Total number (000s) 982 5,211 60,963 13,176 30 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 69. Index the PIA Formula Factors for Longevity: Distribution by Age in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
61 or younger 0 19 70 11 0 100
62—66 7 28 62 3 100
67—70 0 1 96 4 0 100
71—75 0 0 93 7 100
76—80 0 89 11 0 100
81—85 0 0 67 33 100
86 or older 0 0 5 95 0 100
Total number
(000s) 982 5,211 60,963 13,176 30 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 70. Index the PIA Formula Factors for Longevity: Distribution by Marital
Status in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Married 2 8 82 9 0 100
Widowed 0 2 61 36 100
Divorced 1 6 77 15 0 100
Never married 1 9 76 14 0 100
Total number
(000s) 982 5,211 60,963 13,176 30 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 71. Index the PIA Formula Factors for Longevity: Distribution by Benefit Type
in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Retired worker
only 2 7 83 8 0 100
Spouse 0 6 86 100
Survivor 0 1 52 46 0 100
Disability only 0 9 68 24 0 100
Total number
(000s) 982 5,211 60,963 13,176 30 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 72. Index the PIA Formula Factors for Longevity: Distribution by Income
Quintile in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Lowest quintile 0 5 73 22 0 100
Second quintile 0 6 76 18 0 100
Third quintile 1 7 77 15 0 100
Fourth quintile 2 8 76 14 0 100
Highest quintile 3 6 78 13 0 100
Total number
(000s) 982 5,211 60,963 13,176 30 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.









Table 73. Index the PIA Value for Longevity: Summary of Mean and Median
Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -3 -2
Gender
Female 43,596 -3 -2
Male 36,766 -3 -3
Ethnicity
White non-Hispanic 54,217 -3 -2
Black non-Hispanic 8,494 -3 -2
Native American 413 -3 -3
Asian 5,354 -3 -3
Hispanic 11,885 -3 -3
Education Level (highest level completed)
Did not graduate high school 9,531 -3 -2
High school graduate 27,253 -3 -2
Some college 18,525 -3 -2
College graduate or higher 25,053 -3 -3
Age
61 or younger 5,639 0 0
62—66 13,888 -7 -6
67—70 14,558 -4 -5
71—75 16,844 -3 -3
76—80 13,979 -2 -2
81—85 9,171 -1 -1
86 or older 6,283 0 0
Marital Status
Married 41,023 -4 -3
Widowed 17,808 -2 -1
Divorced 11,789 -3 -2
Never married 9,742 -3 -2





Number Mean Median
(000s)
Benefit Type - Current Law
Retired worker only 46,274 -4 -4
Spouse 6,842 -3 -3
Survivor 12,139 -1 0
Disability only 15,107 -1 0
Income Quintile
Lowest quintile 16,071 -2 -2
Second quintile 16,073 -2 -2
Third quintile 16,071 -3 -2
Fourth quintile 16,073 -3 -3
Highest quintile 16,073 -4 -3
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 74. Index the PIA Value for Longevity: Distribution by Impact in 2035
Percentage Change Category Number Percent Cumulative Cumulative
(000s) Number Percent
(000s)
-20% or more 549 1 549 1
-10% to -19% 717 1 1,266 2
Up to -10% 55,929 70 57,195 71
No change 23,067 29 80,262 100
Up to 10% 101 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 75. Index the PIA Value for Longevity: Distribution by Gender in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Female 1 1 68 31 0 100
Male 1 72 26 100
Total number
(000s) 549 717 55,929 23,067 101 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.





Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 76. Index the PIA Value for Longevity: Distribution by Ethnicity in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
White non-Hispanic 1 1 71 28 0 100
Black non-Hispanic 1 1 63 35 0 100
Native American 0 1 72 27 0 100
Asian 1 72 26 100
Hispanic 1 1 69 30 0 100
Total number
(000s) 549 717 55929 23067 101 80367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 77. Index the PIA Value for Longevity: Distribution by Education Level in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Did not graduate high
school 0 1 61 38 0 100
High school graduate 1 1 67 32 0 100
Some college 1 1 73 26 0 100
College graduate or
higher 1 1 74 24 0 100
Total number (000s) 549 717 55,929 23,067 101 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 78. Index the PIA Value for Longevity: Distribution by Age in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
61 or younger 0 0 3 97 0 100
62—66 4 5 68 23 100
67—70 0 0 89 11 0 100
71—75 0 88 12 100
76—80 0 0 86 13 0 100
81—85 0 67 33 100
86 or older 0 0 5 95 0 100
Total number
(000s) 549 717 55,929 23,067 101 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 79. Index the PIA Value for Longevity: Distribution by Marital Status in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Married 1 1 77 21 0 100
Widowed 0 0 58 41 100
Divorced 1 1 70 28 0 100
Never married 1 1 58 40 0 100
Total number
(000s) 549 717 55,929 23,067 101 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 80. Index the PIA Value for Longevity: Distribution by Benefit Type in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Retired worker
only 1 1 90 8 0 100
Spouse 0 0 88 11 100
Survivor 0 50 49 1 100
Disability only 0 0 15 85 0 100
Total number
(000s) 549 717 55,929 23,067 101 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 81. Index the PIA Value for Longevity: Distribution by Income Quintile in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Lowest quintile 0 0 63 37 0 100
Second quintile 0 0 66 33 0 100
Third quintile 0 1 71 28 0 100
Fourth quintile 1 2 73 24 0 100
Highest quintile 2 2 76 20 0 100
Total number
(000s) 549 717 55,929 23,067 101 80,367
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.







Table 82. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Summary of Mean and Median Percentage Change in Benefits in 2035
Number Mean Median
(000s)
All 80,362 -6 -4
Gender
Female 43,596 -5 -3
Male 36,766 -7 -5
Ethnicity
White non-Hispanic 54,217 -6 -5
Black non-Hispanic 8,494 -5 -3
Native American 413 -6 -5
Asian 5,354 -6 -4
Hispanic 11,885 -5 -2
Education Level (highest level completed)
Did not graduate high school 9,531 -3 0
High school graduate 27,253 -5 -3
Some college 18,525 -6 -4
College graduate or higher 25,053 -8 -7
Age
61 or younger 5,639 -5 -2
62—66 13,888 -12 -8
67—70 14,558 -8 -9
71—75 16,844 -6 -7
76—80 13,979 -4 -4
81—85 9,171 -2 -1
86 or older 6,283 0 0
Marital Status
Married 41,023 -7 -6
Widowed 17,808 -4 -1
Divorced 11,789 -6 -4
Never married 9,742 -5 -3
Benefit Type - Current Law
Retired worker only 46,274 -7 -6
Spouse 6,842 -7 -6





Number Mean Median
(000s)
Survivor 12,139 -3 0
Disability only 15,107 -4 -1
Income Quintile - CL
Lowest quintile 16,071 -1 0
Second quintile 16,073 -4 -3
Third quintile 16,071 -6 -5
Fourth quintile 16,073 -8 -7
Highest quintile 16,073 -10 -9
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 83. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Impact in 2035
Cumulative Cumulative
Percentage Change Category Number (000s) Percent Number Percent
(000s)
-20% or more 1,624 2 1,624 2
-10% to -19% 16,552 21 18,175 23
Up to -10% 37,179 46 55,355 69
No change 24,982 31 80,337 100
Up to 10% 25 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 84. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Gender in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Female 1 17 46 36 0 100
Male 3 25 47 26 100
Total number
(000s) 1,624 16,552 37,179 24,983 25 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.





Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 85. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Ethnicity in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
White non-Hispanic 2 22 48 28 0 100
Black non-Hispanic 2 16 45 37 0 100
Native American 1 26 47 27 0 100
Asian 2 23 43 33 100
Hispanic 2 16 42 39 0 100
Total number
(000s) 1,624 16,552 37,179 24,983 25 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 86. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Education Level in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Did not graduate high
school 1 10 36 53 0 100
High school graduate 1 15 48 36 0 100
Some college 2 19 51 28 0 100
College graduate or
higher 3 31 45 20 0 100
Total number (000s) 1,624 16,552 37,179 24,983 25 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 87. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Age in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
61 or younger 1 23 38 38 0 100
62—66 10 34 31 25 100
67—70 0 43 37 19 0 100
71—75 0 23 56 20 100
76—80 0 2 74 24 0 100
81—85 0 1 57 42 100
86 or older 0 0 3 96 0 100
Total number
(000s) 1,624 16,552 37,179 24,983 25 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 88. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Marital Status in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Married 3 25 48 24 0 100
Widowed 1 12 43 44 100
Divorced 2 20 47 31 0 100
Never married 2 18 43 37 0 100
Total number
(000s) 1,624 16,552 37,179 24,983 25 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 89. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Benefit Type in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Retired worker
only 3 24 50 23 0 100
Spouse 2 27 51 19 100
Survivor 1 9 39 51 0 100
Disability only 0 16 39 45 0 100
Total number
(000s) 1,624 16,552 37,179 24,983 25 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 90. Index Initial Benefits to a Combination of Wage Growth and Price Growth:
Distribution by Income Quintile in 2035
Percentage Change Category Total
percent
-20% or -19% to Up to No Up to
more -10% -10% change 10%
Lowest quintile 0 3 31 66 0 100
Second quintile 0 13 56 31 0 100
Third quintile 1 21 54 23 0 100
Fourth quintile 4 28 50 19 0 100
Highest quintile 5 38 41 16 0 100
Total number
(000s) 1,624 16,552 37,179 24,983 25 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.










Table 91. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary
of Mean and Median Percentage Change in Benefits for Individuals Who Pay No
Additional Taxes Over Their Lifetime in 2035
Individuals who pay Number Median percent Mean percent
no additional taxes (000s) change in benefits change in benefits
All 62,406 0 0
Gender
Female 36,283 0 0
Male 26,123 0 0
Ethnicity
White non-Hispanic 40,711 0 0
Black non-Hispanic 7,499 0 0
Native American 345 0 0
Asian 3,796 0 0
Hispanic 10,054 0 0
Education Level (highest level completed)
Did not graduate high school 8,990 0 0
High school graduate 24,570 0 0
Some college 15,029 0 0
College graduate or higher 13,818 0 1
Age
61 or Younger 4,743 0 0
62-66 10,087 0 1
67-70 10,102 0 0
71-75 12,476 0 0
76-80 11,009 0 0
81-85 7,900 0 0
86+ 6,090 0 0





Individuals who pay Number Median percent Mean percent
no additional taxes (000s) change in benefits change in benefits
Marital Status
Married 30,382 0 0
Widowed 15,004 0 0
Divorced 9,211 0 1
Never married 7,809 0 0
Benefit Type - Current Law
Retired worker only 31,193 0 0
Spouse 6,779 0 2
Survivor 11,464 0 0
Disability only 12,970 0 0
Income Quintile
Lowest quintile 15,610 0 0
Second quintile 14,394 0 0
Third quintile 13,058 0 0
Fourth quintile 11,263 0 1
Highest quintile 8,081 0 1
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 92. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary
of Mean and Median Percentage Change in Benefits for Individuals Who Pay Additional
Taxes Over Their Lifetime in 2035
Individuals who pay Number Median percent Mean percent
additional taxes (000s) change in benefits change in benefits
All 17,956 2 5
Gender
Female 7,313 1 5
Male 10,643 2 6
Ethnicity
White non-Hispanic 13,506 2 5
Black non-Hispanic 994 1 6
Native American a a a
Asian 1,558 2 4
Hispanic 1,830 1 8





Individuals who pay Number Median percent Mean percent
additional taxes (000s) change in benefits change in benefits
Education Level (highest level completed)
Did not graduate high school 541 2 5
High school graduate 2,684 1 4
Some college 3,497 1 3
College graduate or higher 11,235 2 6
Age
61 or Younger 896 2 5
62-66 3,801 2 12
67-70 4,456 2 4
71-75 4,368 1 3
76-80 2,971 1 3
81-85 1,271 1 2
86+ 194 1 2
Marital Status
Married 10,641 2 5
Widowed 2,804 1 6
Divorced 2,578 2 5
Never married 1,933 2 4
Benefit Type - Current Law
Retired worker only 15,082 2 6
Spouse a a a
Survivor 675 0 2
Disability only 2,137 1 5
Income Quintile
Lowest quintile 461 1 2
Second quintile 1,679 1 2
Third quintile 3,013 1 2
Fourth quintile 4,811 1 5
Highest quintile 7,993 2 8
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
a. Number not presented due to insufficient sample size.





Table 93. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary
of Mean and Median Percentage Change in Benefits for the Total Population in 2035
Total population Number (000s) Median percent change in benefits Mean percent change in benefits
All 80,362 0 1
Gender
Female 43,596 0 1
Male 36,766 0 2
Ethnicity
White non-Hispanic 54,217 0 2
Black non-Hispanic 164 0 1
Native American 413 0 1
Asian 5,354 0 1
Hispanic 11,885 0 1
Education Level (highest level completed)
Did not graduate high school 9,531 0 0
High school graduate 27,253 0 1
Some college 18,525 0 1
College graduate 25,053 0 3
Age
61 or Younger 5,639 0 1
62-66 13,888 0 4
67-70 14,558 0 2
71-75 16,844 0 1
76-80 13,979 0 1
81-85 9,171 0 0
86+ 6,283 0 0
Marital Status
Married 41,023 0 2
Widowed 17,808 0 1
Divorced 11,789 0 2
Never married 9,742 0 1
Simple Benefit Type - Current Law
Retired worker only 46,274 0 2
Spouse 6,842 0 2
Survivor 12,139 0 0
Disability only 15,107 0 1





Total population Number (000s) Median percent change in benefits Mean percent change in benefits
Income Quintile - Current Law
Lowest quintile 16,071 0 0
Second quintile 16,073 0 0
Third quintile 16,071 0 1
Fourth quintile 16,073 0 2
Highest quintile 16,073 0 4
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 94. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Benefits for the Total Population by Impact in
2035
Cumulative Cumulative
Percentage Change in Benefits Category Number (000s) Percent Number Percent
(000s)
Up to -10% 8 0 8 0
No change 62,303 78 62,310 78
Up to 10% 16,046 20 78,356 98
10% to 19% 1,234 2 79,590 99
20% to 100% 697 1 80,287 100
More than 100% 76 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 95. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Benefits for the Total Population by Gender in
2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
Female 0 80 18 1 1 0 100
Male 0 75 22 2 1 0 100
Total number
(000s) 8 62,303 16,046 1,234 697 76 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.





Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 96. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Benefits for the Total Population by Ethnicity
in 2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
White non-
Hispanic 0 75 22 2 1 0 100
Black non-
Hispanic 0 89 10 0 0 0 100
Native American 0 82 14 2 2 0 100
Asian 0 72 25 3 1 0 100
Hispanic 0 84 14 1 1 0 100
Total number
(000s) 8 62,303 16,046 1,234 697 76 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the “What Do the Tables Show?” in the
report Introduction.
Table 97. Increase the Taxable Earnings Base to Tax All Covered Earnings of the Total
Population: Distribution of Percentage Change in Benefits for the Total Population
by Education Level in 2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
Did not graduate
high school 0 92 7 0 1 0 100
High school
graduate 0 89 10 1 0 0 100
Some college 0 82 16 1 1 0 100
College graduate or
higher 0 57 38 3 2 0 100
Total number (000s) 8 62,303 16,046 1,234 697 76 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 98. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Benefits for the Total Population by Age in
2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
61 or Younger 0 86 12 1 1 0 100
62-66 0 72 23 3 2 0 100
67-70 0 70 27 2 1 0 100
71-75 0 73 24 2 1 0 100
76-80 0 78 20 1 1 0 100
81-85 0 86 13 0 0 0 100
86+ 0 97 3 0 0 0 100
Total number
(000s) 8 62,303 16,046 1,234 697 76 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 99. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Benefits for the Total Population by Marital
Status in 2035
Percentage Change in Benefits Category
Total
Up to No Up to 10% to 20% to More than percent
-10% change 10% 19% 100% 100%
Married 0 74 23 2 1 0 100
Widowed 0 82 16 1 1 0 100
Divorced 0 79 19 1 1 0 100
Never married 0 84 15 1 1 0 100
Total number
(000s) 8 62,303 16,046 1,234 697 76 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 100. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Benefits for the Total Population by Benefit
Type in 2035
Percentage Change in Benefits Category
Total
Up to No Up to 10% to 20% to More than percent
-10% change 10% 19% 100% 100%
Retired worker
only 0 73 24 2 1 0 100
Spouse 0 65 30 3 1 0 100
Survivor 0 88 11 1 0 0 100
Disability only 0 89 10 1 0 0 100
Total number
(000s) 8 62,303 16,046 1,234 697 76 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 101. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Benefits for the Total Population by Income
Quintile in 2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
Lowest Quintile 0 97 3 0 0 0 100
Second Quintile 0 90 10 1 0 0 100
Third Quintile 0 81 18 1 0 0 100
Fourth Quintile 0 70 27 2 1 0 100
Highest Quintile 0 50 42 5 3 0 100
Total number
(000s) 8 62,303 16,046 1,234 697 76 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 102. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary
of Mean and Median Percentage Change in Taxes Paid for Individuals Who Pay No
Additional Taxes Over their Lifetime in 2035
Individuals who pay no additional taxes Number Median percent Mean percent
(000s) change in taxes change in taxes
All 60,903 0 0
Gender
Female 35,344 0 0
Male 25,559 0 0
Ethnicity
White non-Hispanic 39,621 0 0
Black non-Hispanic 7,343 0 0
Native American 340 0 0
Asian 3,726 0 0
Hispanic 9,873 0 0
Education Level (highest level completed)
Did not graduate high school 8,909 0 0
High school graduate 24,290 0 0
Some college 14,707 0 0
College graduate or higher 12,997 0 0
Birth Year
<= 1930 a a a
1931-1941 755 0 0
1942-1945 1,528 0 0
1946-1955 12,831 0 0
1956-1964 21,000 0 0
1965-1970 14,596 0 0
1971+ 10,160 0 0
Marital Status
Married 29,602 0 0
Widowed 14,462 0 0
Divorced 9,030 0 0
Never married 7,809 0 0
Benefit Type - Current Law
Retired worker only 31,193 0 0
Spouse 5,916 0 0
Survivor 10,825 0 0
Disability only 12,970 0 0





Individuals who pay no additional taxes Number Median percent Mean percent
(000s) change in taxes change in taxes
Income Quintile
Lowest quintile 15,432 0 0
Second quintile 14,135 0 0
Third quintile 12,776 0 0
Fourth quintile 10,923 0 0
Highest quintile 7,638 0 0
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
a. Number not presented due to insufficient sample size.
Table 103. Increase the Taxable Earnings Base to Tax All Covered Earnings: Summary
of Mean and Median Percentage Change in Taxes Paid for Individuals Who Pay
Additional Taxes Over their Lifetime in 2035
Individuals who pay additional taxes Number Median percent Mean percent
(000s) change in taxes change in taxes
All 17,956 3 8
Gender
Female 7,313 3 8
Male 10,643 3 8
Ethnicity
White non-Hispanic 13,506 3 8
Black non-Hispanic 994 2 7
Native American a a a
Asian 1,558 4 7
Hispanic 1,830 3 7
Education Level (highest level completed)
Did not graduate high school 541 3 12
High school graduate 2,684 2 7
Some college 3,497 2 5
College graduate or higher 11,235 4 9
Birth Year
1931-1941 a a a
1942-1945 a a a
1946-1955 1,921 2 5
1956-1964 6,862 3 7





Individuals who pay additional taxes Number Median percent Mean percent
(000s) change in taxes change in taxes
1965-1970 6,346 4 9
1971+ 2,807 4 11
Marital Status
Married 10,641 3 8
Widowed 2,804 3 7
Divorced 2,578 3 9
Never married 1,933 3 9
Simple Benefit Type - Current Law
Retired worker only 15,082 3 8
Spouse a a a
Survivor 675 2 5
Disability only 2,137 3 10
Income Quintile - Current Law
Lowest quintile 461 2 5
Second quintile 1,679 2 5
Third quintile 3,013 2 5
Fourth quintile 4,811 3 7
Highest quintile 7,993 4 11
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
a. Number not presented due to insufficient sample size.
Table 104. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Taxes Paid for the Total Population in 2035
Cumulative Cumulative
Percentage Change in Taxes Category Number (000s) Percent Number Percent
(000s)
No change 62,645 79 62,645 79
Up to 10% 12,824 16 75,469 96
10% to 19% 1,991 3 77,460 98
20% to 100% 1,246 2 78,706 100
More than 100% 154 0 78,859 100
Number Missing (000s) = 1503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.





Table 105. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Taxes Paid for the Total Population by Gender
in 2035
Percentage Change in Taxes Category
Total percent
Up to -10% No change Up to 10% 10% to 19% 20% to 100%
Female 85 13 1 1 0 100
Male 73 20 4 2 100
Total number (000s) 62,645 12,824 1,991 1,246 154 78,860
Number Missing (000s) = 1503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 106. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Taxes Paid for the Total Population by Ethnicity
in 2035
Percentage Change in Taxes Category
Total percent
Up to -10% No change Up to 10% 10% to 19% 20% to 100%
White non-Hispanic 77 18 3 2 0 100
Black non-Hispanic 90 9 1 1 0 100
Native American 85 10 2 3 0 100
Asian 73 20 4 100
Hispanic 86 12 1 1 0 100
Total number (000s) 62,645 12,824 1,991 1,246 154 78,860
Number Missing (000s) = 1503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.





Table 107. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Taxes Paid for the Total Population by
Education Level in 2035
Percentage Change in Taxes Category Total
percent
Up to No Up to 10% to 20% to
-10% change 10% 19% 100%
Did not graduate high
school 95 4 0 1 0 100
High school graduate 92 7 0 1 0 100
Some college 84 15 1 1 0 100
College graduate or
higher 57 32 7 4 0 100
Total number (000s) 62,645 12,824 1,991 1,246 154 78,860
Number Missing (000s) = 1503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 108. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Taxes Paid for the Total Population by Age in
2035
Percentage Change in Taxes Category Total percent
Up to -10% No change Up to 10% 10% to 19% 20% to 100%
61 or Younger 85 11 2 1 0 100
62-66 75 19 3 2 100
67-70 72 21 4 3 0 100
71-75 76 19 3 2 100
76-80 80 17 2 1 0 100
81-85 88 11 1 100
86+ 97 3 0 0 0 100
Total number (000s) 62,645 12,824 1,991 1,246 154 78,860
Number Missing (000s) = 1503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.





Table 109. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Taxes Paid for the Total Population Marital
Status in 2035
Percentage Change in Taxes Category Total percent
Up to -10% No change Up to 10% 10% to 19% 20% to 100%
Married 76 19 3 2 0 100
Widowed 85 12 1 1 0 100
Divorced 80 16 3 1 0 100
Never married 82 15 2 1 0 100
Total number (000s) 62,645 12,824 1,991 1,246 154 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 110. Increase the Taxable Earnings Base to Tax All Covered Earning:
Distribution of Percentage Change in Taxes Paid for the Total Population by Benefit
Type in 2035
Percentage Change in Taxes Category Total percent
Up to -10% No change Up to 10% 10% to 19% 20% to 100%
Retired worker only 71 23 4 2 0 100
Spouse 99 0 0 0 0 100
Survivor 95 4 0 0 0 100
Disability only 87 10 2 1 0 100
Total number (000s) 62,645 12,824 1,991 1,246 154 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.





Table 111. Increase the Taxable Earnings Base to Tax All Covered Earnings:
Distribution of Percentage Change in Taxes Paid for the Total Population by Income
Quintile in 2035
Percentage Change in Taxes Category
Total percent
Up to -10% No change Up to 10% 10% to 19% 20% to 100%
Lowest quintile 98 2 0 0 0 100
Second quintile 91 8 1 0 0 100
Third quintile 83 15 2 1 0 100
Fourth quintile 73 23 3 2 0 100
Highest quintile 53 35 7 5 1 100
Total number (000s) 62,645 12,824 1,991 1,246 154 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.









Table 112. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Benefits for Individuals Who
Pay No Additional Taxes Over their Lifetime in 2035
Individuals who pay no additional taxes Number Median percent Mean percent
(000s) change in benefits change in benefits
All 62,406 0 0
Gender
Female 36,283 0 0
Male 26,123 0 0
Ethnicity
White non-Hispanic 40,711 0 0
Black non-Hispanic 7,499 0 0
Native American 345 0 0
Asian 3,796 0 0
Hispanic 10,054 0 0
Education Level (highest level completed)
Did not graduate high school 8,990 0 0
High school graduate 24,570 0 0
Some college 15,029 0 0
College graduate or higher 13,818 0 1
Age
61 or Younger 4,743 0 0
62-66 10,087 0 0
67-70 10,102 0 0
71-75 12,476 0 0
76-80 11,009 0 0
81-85 7,900 0 0
86+ 6,090 0 0
Marital Status
Married 30,382 0 0
Widowed 15,004 0 0





Individuals who pay no additional taxes Number Median percent Mean percent
(000s) change in benefits change in benefits
Divorced 9,211 0 0
Never married 7,809 0 0
Benefit Type - Current Law
Retired worker only 31,193 0 0
Spouse 6,779 0 1
Survivor 11,464 0 0
Disability only 12,970 0 0
Income Quintile
Lowest quintile 15,610 0 0
Second quintile 14,394 0 0
Third quintile 13,058 0 0
Fourth quintile 11,263 0 0
Highest quintile 8,081 0 1
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 113. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Benefits for Individuals Who
Pay Additional Taxes Over Their Lifetime in 2035
Individuals who pay additional taxes Number Median percent Mean percent
(000s) change in benefits change in benefits
All 17,956 2 4
Gender
Female 7,313 1 3
Male 10,643 2 5
Ethnicity
White non-Hispanic 13,506 2 4
Black non-Hispanic 994 1 4
Native American a a a
Asian 1,558 2 3
Hispanic 1,830 1 6
Education Level (highest level completed)
Did not graduate high school 541 2 4
High school graduate 2,684 1 2
Some college 3,497 1 2
College graduate or higher 11,235 2 5





Individuals who pay additional taxes Number Median percent Mean percent
(000s) change in benefits change in benefits
Age
61 or younger 896 2 4
62-66 3,801 2 9
67-70 4,456 2 3
71-75 4,368 1 3
76-80 2,971 1 2
81-85 1,271 1 2
86+ 194 1 1
Marital Status
Married 10,641 2 4
Widowed 2,804 1 4
Divorced 2,578
Never married 1,933 2 3
Benefit Type - Current Law
Retired worker only 15,082 2 4
Spouse a a a
Survivor 675 0 2
Disability only 2,137 1 3
Income Quintile
Lowest quintile 461 1 2
Second quintile 1,679 1 2
Third quintile 3,013 1 2
Fourth quintile 4,811 1 4
Highest quintile 7,993 2 6
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
a. Number not presented due to insufficient sample size.





Table 114. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Benefits for Total Population in
2035
Total population Number Median percent Mean percent
(000s) change in benefits change in benefits
All 80,362 0 1
Gender
Female 43,596 0 1
Male 36,766 0 1
Ethnicity
White non-Hispanic 54,217 0 1
Black non-Hispanic 8,494 0 1
Native American 413 0 1
Asian 5,354 0 1
Hispanic 11,885 0 1
Education Level (highest level completed)
Did not graduate high school 9,531 0 0
High school graduate 27,253 0 0
Some college 18,525 0 1
College graduate or higher 25,053 0 3
Age
61 or younger 5,639 0 1
62-66 13,888 0 3
67-70 14,558 0 1
71-75 16,844 0 1
76-80 13,979 0 1
81-85 9,171 0 0
86+ 6,283 0 0
Marital Status
Married 41,023 0 1
Widowed 17,808 0 1
Divorced 11,789 0 1
Never married 9,742 0 1
Simple Benefit Type - Current Law
Retired worker only 46,274 0 1
Spouse 6,842 0 1
Survivor 12,139 0 0
Disability only 15,107 0 0





Total population Number Median percent Mean percent
(000s) change in benefits change in benefits
Income Quintile - Current Law
Lowest quintile 16,071 0 0
Second quintile 16,073 0 0
Third quintile 16,071 0 1
Fourth quintile 16,073 0 1
Highest quintile 16,073 0 3
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 115. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Impact in
2035
Cumulative Cumulative
Percentage Change in Benefits Category Number (000s) Percent number percent
(000s)
Up to -10% 8 0 8 0
No change 62,323 78 62,330 78
Up to 10% 16,592 21 78,922 98
10% to 19% 1,057 1 79,980 100
20% to 100% 350 0 80,330 100
More than 100% 33 0 80,362 100
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 116. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Gender in
2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
Female 0 80 19 1 0 0 100
Male 0 75 23 2 1 0 100
Total number
(000s) 8 62,323 16,592 1,057 350 33 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.





Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 117. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Ethnicity in
2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
White non-
Hispanic 0 75 23 1 0 0 100
Black non-
Hispanic 0 89 10 0 0 0 100
Native American 0 82 15 3 0 0 100
Asian 0 72 26 2 0 0 100
Hispanic 0 84 15 1 0 0 100
Total number
(000s) 8 62,323 16,592 1,057 350 33 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 118. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Education
Level in 2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
Did not graduate
high school 0 92 7 1 0 0 100
High school
graduate 0 89 11 1 0 0 100
Some college 0 82 17 1 0 0 100
College graduate or
higher 0 57 39 3 1 0 100
Total number (000s) 8 62,323 16,592 1,057 350 33 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 119. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Age in 2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
61 or younger 0 86 12 1 0 0 100
62-66 0 72 24 3 1 0 100
67-70 0 70 28 2 1 0 100
71-75 0 73 25 1 0 0 100
76-80 0 78 21 1 0 0 100
81-85 0 86 13 0 0 0 100
86+ 0 97 3 0 0 0 100
Total number
(000s) 8 62,323 16,592 1,057 350 33 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 120. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Marital
Status in 2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
Married 0 74 24 2 0 0 100
Widowed 0 82 17 1 0 0 100
Divorced 0 79 19 1 1 0 100
Never married 0 84 15 1 0 0 100
Total number
(000s) 8 62,323 16,592 1,057 350 33 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 121. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Benefit Type
in 2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
Retired worker
only 0 73 25 2 1 0 100
Spouse 0 65 32 2 1 0 100
Survivor 0 88 12 0 0 0 100
Disability only 0 89 10 1 0 0 100
Total number
(000s) 8 62,323 16,592 1,057 350 33 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.
Table 122. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Benefits for the Total Population by Income
Quintile in 2035
Percentage Change in Benefits Category Total
percent
Up to No Up to 10% to 20% to More than
-10% change 10% 19% 100% 100%
Lowest quintile 0 97 3 0 0 0 100
Second quintile 0 90 10 0 0 0 100
Third quintile 0 81 18 0 0 0 100
Fourth quintile 0 70 28 1 0 0 100
Highest quintile 0 50 44 4 2 0 100
Total number
(000s) 8 62,323 16,592 1,057 350 33 80,362
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Please see the section on “What Do the Tables
Show?” in the report Introduction.





Table 123. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Taxes Paid for Individuals Who
Pay No Additional Taxes Over Their Lifetime in 2035
Individuals who pay no additional taxes Number Median percent Mean percent
(000s) change in taxes change in taxes
All 60,903 0 0
Gender
Female 35,344 0 0
Male 25,559 0 0
Ethnicity
White non-Hispanic 39,621 0 0
Black non-Hispanic 7,343 0 0
Native American 340 0 0
Asian 3,726 0 0
Hispanic 9,873 0 0
Education Level (highest level completed)
Did not graduate high school 8,909 0 0
High school graduate 24,290 0 0
Some college 14,707 0 0
College graduate or higher 12,997 0 0
Birth Year
<= 1930 a a a
1931-1941 755 0 0
1942-1945 1,528 0 0
1946-1955 12,831 0 0
1956-1964 21,000 0 0
1965-1970 14,596 0 0
1971+ 10,160 0 0
Marital Status
Married 29,602 0 0
Widowed 14,462 0 0
Divorced 9,030 0 0
Never married 7,809 0 0
Benefit Type - Current Law
Retired worker only 31,193 0 0
Spouse 5,916 0 0
Survivor 10,825 0 0
Disability only 12,970 0 0





Individuals who pay no additional taxes Number Median percent Mean percent
(000s) change in taxes change in taxes
Income Quintile
Lowest quintile 15,432 0 0
Second quintile 14,135 0 0
Third quintile 12,776 0 0
Fourth quintile 10,923 0 0
Highest quintile 7,638 0 0
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
a. Number not presented due to insufficient sample size.
Table 124. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Summary of Mean and Median Percentage Change in Taxes Paid for Individuals Who
Pay Additional Taxes Over Their Lifetime in 2035
Individuals who pay additional taxes Number Median percent Mean percent
(000s) change in taxes change in taxes
All 17,956 3 6
Gender
Female 7,313 3 6
Male 10,643 3 6
Ethnicity
White non-Hispanic 13,506 3 6
Black non-Hispanic 994 2 5
Native American a a a
Asian 1,558 4 6
Hispanic 1,830 3 6
Education Level (highest level completed)
Did not graduate high school 541 3 8
High school graduate 2,684 2 5
Some college 3,497 2 4
College graduate or higher 11,235 4 7
Birth Year
1931-1941 a a a
1942-1945 a a a
1946-1955 1,921 2 4
1956-1964 6,862 3 5





Individuals who pay additional taxes Number Median percent Mean percent
(000s) change in taxes change in taxes
1965-1970 6,346 4 7
1971+ 2,807 4 7
Marital Status
Married 4,227 3 6
Widowed 1,114 3 5
Divorced 1,024 3 6
Never married 768 3 6
Simple Benefit Type - Current Law
Retired worker only 15,082 3 6
Spouse a a a
Survivor 675 2 4
Disability only 2,137 3 7
Income Quintile - Current Law
Lowest quintile 461 2 5
Second quintile 1,679 2 4
Third quintile 3,013 2 4
Fourth quintile 4,811 3 5
Highest quintile 7,993 4 7
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Please see the section on “What Do the Tables Show?” in the report Introduction.
a. Number not presented due to insufficient sample size.
Table 125. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Impact in
2035
Cumulative Cumulative
Number (000s) Percent number percent
(000s)
No change 62,645 79 62,645 79
Up to 10% 13,168 17 75,813 96
10% to 20% 2,042 3 77,855 99
20% or more 1,004 1 78,859 100
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.





Table 126. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Gender in
2035
Percentage Change in Taxes Category Total percent
No change Up to 10% 10% to 20% 20% or more
Female 85 13 2 1 100
Male 73 21 4 2 100
Total number (000s) 62,645 13,168 2,042 1,004 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 127. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Ethnicity in
2035
Percentage Change in Taxes Category Total percent
No change Up to 10% 10% to 20% 20% or more
White non-Hispanic 77 19 3 1 100
Black non-Hispanic 90 9 1 1 100
Native American 85 10 2 2 100
Asian 73 21 4 100
Hispanic 86 12 1 1 100
Total number (000s) 62,645 13,168 2,042 1,004 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 128. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Education
Level in 2035
Percentage Change in Taxes Category Total percent
No change Up to 10% 10% to 20% 20% or more
Did not graduate high school 95 4 0 1 100
High school graduate 92 7 0 1 100
Some college 84 15 1 1 100





Percentage Change in Taxes Category Total percent
No change Up to 10% 10% to 20% 20% or more
College graduate or higher 57 34 7 3 100
Total number (000s) 62,645 13,168 2,042 1,004 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 129. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Age in
2035
Percentage Change in Taxes Category
Total percent
No change Up to 10% 10% to 20% 20% or more
61 or younger 85 11 2 1 100
62-66 75 19 4 2 100
67-70 72 22 100
71-75 76 20 3 1 100
76-80 80 17 2 100
81-85 88 11 1 0 100
86+ 97 3 0 100
Total number (000s) 62,645 13,168 2,042 1,004 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.





Table 130. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Marital
Status in 2035
Percentage Change in Taxes Category
Total percent
No change Up to 10% 10% to 20% 20% or more
Married 76 19 3 2 100
Widowed 85 12 1 1 100
Divorced 80 16 3 100
Never married 82 15 1 1 100
Total number (000s) 62,645 13,168 2,042 1,004 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 131. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Benefit
Type in 2035
Percentage Change in Taxes Category
Total percent
No change Up to 10% 10% to 20% 20% or more
Retired worker only 71 24 4 2 100
Spouse 99 1 0 0 100
Survivor 95 5 0 0 100
Disability only 87 10 2 1 100
Total number (000s) 62,645 13,168 2,042 1,004 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.
Table 132. Increase the Taxable Earnings Base to Tax 90% of Covered Earnings:
Distribution of Percentage Change Taxes Paid for the Total Population by Income
Quintile in 2035
Percentage Change in Taxes Category
Total percent
No change Up to 10% 10% to 20% 20% or more
Lowest quintile 98 2 0 0 100
Second quintile 91 8 1 0 100
Third quintile 83 15 2 1 100





Percentage Change in Taxes Category
Total percent
No change Up to 10% 10% to 20% 20% or more
Fourth quintile 73 23 3 1 100
Highest quintile 53 36 7 4 100
Total number (000s) 62,645 13,168 2,042 1,004 78,860
Number Missing (000s) = 1,503
Source: Congressional Research Service (CRS) calculations using the Urban Institute’s Dynasim microsimulation
model.
Note: Categories may not add to 100% due to rounding. Individuals without earnings are not included (missing)
from table. Please see the section on “What Do the Tables Show?” in the report Introduction.







The Primary Insurance Amount (PIA) is the basic Social Security monthly benefit amount
payable to an individual upon entitlement to retirement benefits at the normal retirement age (i.e.,
the PIA does not reflect any adjustments for early or delayed retirement) or disability benefits. In
addition, the PIA is the base amount used to determine monthly benefits payable to family
members on the worker’s record (such as a spouse or surviving spouse).
Under current law, the PIA is determined by applying a benefit formula to the worker’s average
lifetime covered earnings. In the first step of the benefit computation, the worker’s nominal
earnings (up to 2 calendar years prior to the year of eligibility—for example, earnings prior to age
60 in the case of a retirement benefit) are indexed to wage growth to reflect the change in average
wages over time. (Earnings in subsequent years are counted at nominal value.) For purposes of
computing a basic retirement benefit, the 35 highest years of indexed earnings are then averaged
and a monthly amount is computed to determine the worker’s Average Indexed Monthly Earnings
(AIME). (If a worker has fewer than 35 years of covered earnings, years of “zero” earnings are 7
counted in the computation of the AIME.) The benefit formula is then applied to the worker’s
AIME. The benefit formula that applies to individuals who first become eligible for retirement or
disability benefits in 2006, or who die in 2006 before becoming eligible for benefits, is as
follows:
• 90% of the first $656 of AIME, plus
• 32% of AIME over $656 through $3,955, plus
• 15% of AIME over $3,955
For example, the PIA for a worker who reaches age 62 in 2006, based on an AIME of $4,500,
would be $1,727.80. The PIA would be computed as follows:
• 90% x $656 = $590.40, plus
• 32%x$3,299 = $1,055.68, plus
• 15% x $545 = $81.75
PIA = $1,727.80 (rounded to the next lower 10 cents)
The worker’s PIA is based on the benefit formula that applies in the year the worker first becomes
eligible for benefits (age 62 for retired-worker benefits, the year of disability for disabled-worker
benefits, or the year of the worker’s death for survivor benefits ), rather than the first year of

7 The number of computation years used to determine the AIME varies, depending on the type of benefit (retirement,
survivor or disability). The number of computation years is based on the number ofelapsed years (i.e., the number of
calendar years after 1950 or, if later, attainment of age 21) up to the year the worker attains age 62 (for retirement
benefits); the year of death or, if earlier, attainment of age 62 (for survivor benefits); or the year of disability (for
disability benefits) minus anydropout years. The number of dropout years also varies, depending on the type of
benefit. For purposes of retirement and survivor benefits, up to 5 dropout years apply. For purposes of disability
benefits for workers disabled before age 47, 1 to 4 dropout years apply, depending on the workers age and the number
of dropout years. However, no fewer than 2 computation years may be used for disability benefit calculations.





benefit receipt. Beginning with the first year of eligibility, the PIA is increased by the annual
Social Security cost-of-living adjustment (COLA) for any intervening years between eligibility
and benefit receipt. For example, if an individual who first becomes eligible for retired-worker
benefits at age 62 in 2006 elects to receive benefits at the normal retirement age (age 66 in 2010),
the PIA effective at the normal retirement age would be the PIA calculated using the benefit
formula for 2006 (shown above) adjusted annually according to the COLA effective in December

2006, December 2007, December 2008 and December 2009.


The dollar amounts that separate the three brackets of AIME in the benefit formula ($656 and
$3,955) are referred to as bend points. Under current law, the bend points are indexed to wage
growth on an annual basis to provide stable replacement rates over time for workers with similar
earnings patterns. (The replacement rate is based on Social Security benefits in the first year of
retirement divided by final earnings.) For example, under current law, the benefit formula is
designed to provide a replacement rate of approximately 40% for average-wage earners
regardless of the year of retirement.
The percentages that apply to each of the three brackets of AIME in the benefit formula (90%,

32% and 15%) are referred to as formula factors (or replacement factors). The formula factors,


which are fixed under current law, are structured such that Social Security benefits replace a
greater share of pre-retirement earnings for lower-wage workers wompared with higher-wage
workers.







The current-law Social Security rules regarding spouses and survivors can increase the benefits of
some married, widowed, and divorced beneficiaries. When these spouse and survivor rules
interact with policy options that reduce Social Security benefits, they can mitigate the effect of
benefit reductions, causing smaller reductions than would have been expected under the policy
option.
The Social Security rules regarding spouses and aged survivors allow some individuals to receive
a benefit when they otherwise would have received none, and allow other individuals to receive a
higher benefit than they otherwise would have received.
Individuals who do not qualify for a Social Security benefit based on their own work records may
qualify for a benefit based on their current or former spouses’ work records. Social Security
spouse benefits are payable to the spouse or divorced spouse of a retired or disabled worker, 8
based on the worker’s earnings record. The primary insurance amount (PIA) for a spouse
beneficiary is generally 50% of his or her spouse’s PIA. Social Security survivor benefits are
payable to the survivors of a deceased worker, based on the worker’s earnings record. The PIA for 9
an aged widow or widower is 100% of his or her deceased spouse’s final benefit amount.
Individuals who do qualify for Social Security benefits based on their own work records may
receive a partial spouse or survivor benefit in addition to their own worker benefit, if the amount
of their spouse or survivor benefit would be greater than their worker benefit. These so-called
dually entitled beneficiaries receive a total Social Security benefit that is the higher of the worker
benefit and the spouse or survivor benefit to which they are entitled, not the sum of the two
benefits.
Some individuals marry more than once throughout the course of their lives, either because they
were divorced or widowed. Some of these individuals may qualify for spouse and/or survivor 10
benefits based on the work records of more than one spouse. In such a case, an individual would
receive the highest benefit to which he or she is entitled.
When Social Security’s spouse and survivor rules interact with policy options that would reduce
benefits, they can mitigate the effect of benefit reductions, causing smaller reductions than would
have been expected under the policy option. There are two mechanisms that could mitigate the

8 Divorced spouses must have been married to the worker for at least 10 years to qualify for spouse or survivor benefits.
9 Other types of survivor benefits—those for children, mothers or fathers with a child in care, and dependent parents of
Social Security beneficiaries—are not analyzed in this report.
10 In some cases, beneficiaries do not qualify for benefits based on a former spouses work record if they remarry.





effect of the policy option for a beneficiary: (1) if his or her benefit type changes under the
option, or (2) if the spouse on whose work record his or her the benefit is based changes under the
option.
Some individuals could change benefit types under a policy option because of the spouse and
survivor rules, thus mitigating the effect of the option’s benefit reduction. For example, consider a
couple in which the wife receives a $600 retired worker benefit and the husband receives a
$1,100 retired worker benefit under current law. The woman would not qualify for a spouse
benefit under current law, since her worker benefit ($600) is greater than 50% of her husband’s
primary insurance amount (assuming he is not subject to any reductions or credits, this amount
would be $550). If the wife is younger than the husband, she would be subject to a greater benefit
reduction in 2035 under most of the policy options analyzed in this report. Continuing the
example above, let’s assume under a policy option that the wife’s benefit were reduced by $100
(making her retired worker benefit $500) and the husband’s benefit is reduced by $50 (making his
retired worker benefit $1,050). As a result, the wife would become dually entitled to receive a
partial spouse benefit in addition to her full worker benefit. Her total benefit amount under the
option would be equal to 50% of her husband’s PIA, or $525 in this case (i.e., $500 in worker
benefits and $25 in spouse benefits). Thus, the dual entitlement rule leads the wife to receive a
$75 benefit reduction rather than a $100 reduction.
Some individuals could receive a spouse or survivor benefit based on a different marriage than
under current law as a result of a policy change, thus mitigating the effect of a benefit reduction
that would otherwise result from the policy option. For example, consider a woman who divorced
after 15 years of marriage, then remarried. Under current law, she receives a spouse benefit of
$600. Her spouse benefit is based on her current husband’s PIA of $1,200; her former husband’s
PIA is $1,180. Under the policy option, her current husband’s PIA is reduced by $100 (to $1,100),
and her former husband’s PIA remains at $1,180 since he retired before the policy option was
implemented. Under the policy option, she would receive a divorced spouse benefit based on her
former husband’s work record—rather than her current husband’s work record—since the benefit
she would receive based on her former husband’s record ($590) would be greater than the benefit
she would receive based on her current husband’s record ($550). Thus, the rule that allows
beneficiaries to receive the highest spouse or survivor benefit to which they are entitled means
that the wife in this example receives a $10 benefit reduction rather than a $50 benefit reduction.
It is important to note that in either scenario—changing benefit type or changing the spouse on
which the benefit is based—the affected beneficiary would receive a higher-than-expected benefit
under the option due to Social Security’s spouse and survivor rules. The reason for this effect is
that the Social Security rules always allow beneficiaries to receive a total benefit that is equal to
the highest of the various benefits to which they may be entitled.







The current-law Retirement Earnings Test (RET) can affect benefits received before and after the
full retirement age (FRA). When the RET provision interacts with policy options that reduce
Social Security benefits, it can magnify the size of the benefit reduction received before the FRA
and reduce the size of the benefit reduction received after the FRA relative to what is expected
under the policy option, or even lead to apparent benefit increases relative to current law.
The RET is a current-law provision that reduces the Social Security benefits paid to some
individuals who work before their full retirement age (FRA). Specifically, the RET applies to
non-DI beneficiaries below the FRA who have earnings from employment in excess of certain 11
thresholds. Generally, for workers who fall under the full retirement age for the entire year, the
threshold is $12,480 in 2006. For every two dollars in earnings over this threshold, the worker’s
Social Security benefit is reduced by one dollar. In the year that the worker attains the full
retirement age, a higher threshold of $33,240 applies in 2006 for those months worked prior to
the full retirement age. For every three dollars in earnings over this threshold, the worker’s Social
Security benefit is reduced by one dollar. These thresholds rise annually with increases in the
national average wage. Monthly benefits are eliminated or reduced until all excess earnings have
been offset. The RET does not apply to workers after they attain the full retirement age.
Table C-1. Retirement Earnings Test Application Rules
Age of Social Security Beneficiary Threshold in 2006 Benefit Reduction
Under FRA Entire Year $12,480 $1 for every $2 of excess earnings
In Year of Attaining FRA, for Months Prior to the FRA $33,240 $1 for every $3 of excess earnings
Over the FRA No threshold No reduction
For example, Joe is 62 and will not reach the full retirement age this year. Thus, Joe could earn up
to $12,480 in 2006 without penalty. Joe earns $30,000 this year, so his Social Security benefit
would be reduced under the RET. For every two dollars of earnings over the $12,480 threshold,
his benefit would be reduced by one dollar. Joe has ‘excess’ earnings of $17,520 in 2006 ($30,000
- $12,480). Thus, the reduction to his Social Security benefit is $8,760 ($17,520 x 0.5) in 2006.
Joe’s current-law Social Security benefit is $1,500 per month ($18,000 per year) before the RET
is applied. Therefore, Joe would lose his Social Security benefit payments for 5 full months and th
would lose a portion of his benefit for a 6 month ($8,760/$1,500) because of his excess earnings
under the RET. After application of the RET, Joe’s annual Social Security benefit would be
$9,240 ($18,000 - $8,760).

11 The RET does not apply to disabled workers receiving Disability Insurance (DI) benefits because these individuals
are subject to their own earnings test, the Substantial Gainful Activity (SGA) test. See CRS Report 98-789, Social
Security: Proposed Changes to the Earnings Test, by Debra B. Whitman for additional information on the RET.





Those individuals who face benefit reductions due to the RET have their benefits increased at the
full retirement age. Under current law, workers are only subject to the RET if they have excess
earnings, receive non-DI benefits and have not yet reached the full retirement age. When
individuals receive non-DI benefits prior to the full retirement age, they are subject to an actuarial
benefit reduction, the size of which is dependent on the number of months of benefits the
individual is projected to receive benefits before the full retirement age. The greater the number
of months of benefit receipt prior to the full retirement age, the greater the actuarial reduction.
Those retiring at the earliest eligibility age (60 for survivors benefits, 62 for retirement benefits)
face the largest reduction. For every month that an individual’s early retirement or early survivor
benefit is eliminated as a result of the RET, the actuarial reduction that he or she is subject to goes
down as compensation for these lost benefits. When the individual reaches the full retirement age,
the actuarial reduction is lowered and the retirement or survivor benefit is adjusted upward to
account for the lost months of benefits under the RET.
Following on the previous example, if Joe takes Social Security benefits at the earliest eligibility 12
age, 62, his benefits will be 25% lower than if he retired at his FRA of 66. If Joe’s full
retirement benefit (PIA) was $2,000 per month, his monthly benefit after the early retirement
reduction would be $1,500 ($2,000 x 0.75). However, if Joe continues working, as described in
the previous example, he would lose benefits for over five months out of the year due to the RET.
If Joe worked intermittently between age 62 and 66 and the RET ultimately eliminated Joe’s
benefit for a total of 12 months over this period, essentially, Joe delayed taking up Social Security
benefits for an additional year. Therefore, his actuarial reduction for early retirement should be
adjusted to reflect his receipt of Social Security benefits for only 36 months prior to his full
retirement age instead of 48. Joe’s actuarial reduction would be reduced from -25% to -20% at the
full retirement age of 66. Thus, at age 66 the RET would increase Joe’s monthly benefit from
$1,500 to $1,600 ($2,000 x .80) under current-law, about a 7% increase. On an annual basis, the
RET would increase Joe’s benefit from $18,000 per year to $19,200 per year.
The RET can magnify the effect of policy options that reduce benefits relative to current law.
Those affected by the RET appear to receive larger benefit reductions than what could be
attributed to the policy change alone. The RET calculation is based on a worker’s excess
earnings. Since earnings are not affected by the policy option, the RET reduction is the same
dollar amount under both current law and the policy option. If a policy option reduces Social
Security benefits, this smaller Social Security benefit is being reduced by the same dollar amount
under the RET as under current law. Therefore, the RET creates a larger percent reduction in
benefits than is expected under the policy change.

12 The benefit reduction of 25% is calculated based on the number of months Joe retires before his full retirement age.
By retiring at age 62, Joe will collect Social Security benefits for 48 months before his full retirement age of 66. For
information on how the actuarial reduction is determined, see Table 2.A17.1 in the Social Security Administration’s
Annual Statistical Supplement to the Social Security Bulletin, 2005 available at http://www.ssa.gov/policy/docs/
statcomps/supplement/2005/2a8-2a19.html#table2.a17.1.





Continuing the current-law example, assume that a policy option reduces Joe’s initial benefit by
10% (prior to the application of the RET). Thus, his annual benefit prior to the RET is $18,000
and the policy option reduces his benefit by 10% ($1,800) to $16,200. Since Joe’s earnings don’t
change, and he still has excess earnings of $17,520 in 2006, the RET still reduces his annual
Social Security benefit by $8,760. So, Joe’s final annual benefit (after the policy option and the
RET) is $7,440 ($16,200 - $8,760), which is approximately a 20% decrease ($7,440/$9,240) from
the current law annual benefit of $9,240 (after the RET). Thus, the interaction of the policy option
with the RET program rules is responsible for the larger than expected reduction in Joe’s benefit.
Some policy options might reduce the Social Security benefit to a size where the fixed dollar
amount of the RET fully eliminates the Social Security benefit for a greater number of months
than under current law. Because of the interaction of the policy option with the RET and the
actuarial benefit reduction, the ultimate consequence of this benefit elimination is a later increase
in benefits relative to current law. When a policy option reduces the size of the Social Security
benefit, the unchanging dollar amount of the RET requires more months of benefits to be
eliminated than under current law. Thus, at the full retirement age, when the benefits are adjusted
upward for this loss, they are increased relative to current law, making some individuals receive
benefit increases that would seem to be counterintuitive under a policy change that reduces
benefits.
For example, if Joe’s benefit were reduced relative to current law, let’s say that the RET would
eliminate his now smaller Social Security benefit for 16 months instead of 12 months during the
period he worked between age 62 and 66. Joe’s actuarial reduction would be adjusted to reflect
his receipt of Social Security benefits for only 32 months prior to his full retirement age instead
of 36 months under current law (after the RET). Joe’s actuarial reduction would be reduced from
-20% to approximately -16.7%. Thus, under the policy option, at age 66 Joe’s benefit increases
from $1,600 (PIA of $2,000 x 0.80) under current law to $1,666 ( PIA of $2,000 x .83) under the
policy option, a benefit increase of 4%.
In summary, the RET can either magnify the size of a benefit reduction under a policy change or
appear to create a benefit increase relative to current law, depending on whether an individual is
below or above the full retirement age.







The progressive price indexing policy option would constrain the growth of initial benefits for
future retirees by using a combination of wage indexing and price indexing in the benefit formula
to apply differing degrees of benefit reduction based on the worker’s career-average level of
earnings. The following section explains the mechanics of the progressive price indexing option 13
examined in this report. The basic steps used to calculate initial benefits for future retirees under
the progressive price indexing option include:
The benefits of low-wage workers would be preserved by establishing a new bend point in the
PIA formula, below which initial benefits would continue to be fully wage-indexed. For the th
option analyzed in this report, the new bend point would be established at the 30 percentile of
earnings. This means that workers with career-average earnings in the lowest 30% of the earnings
distribution would experience no change in benefits relative to current law.
The new bend point would fall between the first and second bend points under current law. The
replacement factors for the now four brackets of Average Indexed Monthly Earnings in the
benefit formula would be set initially at 90%, 32%, 32% and 15%. The new bend point would
increase each year after 2013 by the rate of growth of the national average wage, just as the two
current bend points are wage-indexed. All workers with career-average earnings below this new
bend point would continue to have their initial benefits fully wage-indexed. Workers with career-
average earnings above the new bend point would have their initial benefits reduced because the
third and fourth replacement factors (32% and 15%) would be adjusted downward each year
(described in Step 3 below).
For those who become eligible for retired-worker benefits in 2013 and each year thereafter,
calculate a hypothetical fully price-indexed PIA for a worker who had maximum earnings over
his/her career and the percentage reduction in benefits between this hypothetical PIA and the
current law PIA. SSA would compute the percentage benefit reduction that would apply for a 14
career high-wage earner if all three of the current-law PIA factors (90%, 32%, and 15%) were
fully price-indexed.
For example, if the benefit for a career high-wage earner retiring at the full retirement age in a
future year were determined to be, say, $2,800 per month and the percentage changes in prices

13 These steps follow those described in a memorandum from Stephen Goss, Chief Actuary of the Social Security
Administration to Robert Pozen dated Feb. 10, 2005. See http://www.ssa.gov/OACT/solvency/RPozen_20050210.pdf.
14 A career high-wage earner is someone who earned at or above the taxable wage base for at least 35 years in their
entire career.





and wages since 2011 were 2.8% and 3.9%, respectively, the benefit for a high-wage earner
would be recalculated with each of the three PIA factors multiplied by the ratio 1.028/1.039 or 15
.989. Thus, in this example, the benefit of a high-wage earner under full price indexing would
be reduced by 1.1% in 2013, the first year that price indexing would be in effect. After ten
years—assuming that prices and wages continued to grow annually by 2.8% and 3.9%—the PIA 1010
factors would be multiplied by 1.028/1.039 = .899, representing a benefit reduction of 10.1%.
The third step of the process would be to calculate the percentage reduction only to the PIA
factors above the new bend point (32% and 15%) that would result in the same benefit reduction
for career-long maximum-wage earners (those always at or above the annual maximum taxable
wage) as would have applied to these earners if price indexing had been applied to all workers.
This would reduce benefits for career-long maximum-wage earners by the same percentage as
they would have been reduced if the benefit formula were fully price-indexed for workers at all
earnings levels. Benefits would be reduced by a smaller percentage for workers with career-long
average wages and not at all for workers with average wages that fall in the lowest 30% of the
earnings distribution.

15 Earnings are indexed to the average wage level two years prior to the worker’s first year of eligibility because there
is a two-year lag time associated with the release of official wage data for a given year. Thus, if the first year the policy
applies is 2013, it would be necessary to obtain the official wage data from 2011.







The Urban Institute’s Dynamic Simulation of Income Model (Dynasim) is a computer model that
uses survey data to project demographic changes, retirement income, and Social Security
benefits. It was created by the Urban Institute and was purchased by the Congressional Research
Service. Dynasim can be used to analyze the consequences of retirement and aging policy issues
on individual and family income and benefits. One of the major advantages of using the Dynasim
model is the ability to analyze the distributional effects of Social Security proposals. For example,
Dynasim can be used: 1) to analyze the difference in benefit levels between a particular Social
Security reform proposal and current law; 2) to model the combined effects of multiple and
complex policy changes on individual and family benefits and total income; 3) to model the effect
of a change in Social Security policy on an individual’s eligibility for other means-tested federal
programs (e.g. SSI). The effect on individuals and families can be broken down along multiple
demographic and economic lines, such as gender, educational attainment, marital status, race, and
wealth.
Through statistical adjustments of the data sources listed below, Dynasim projects the major
pillars of retirement income. Starting with a representative sample of individuals and nuclear
families, the model “ages” the data year by year from 1993 to 2050. Characteristics such as an
individual’s year of birth, educational attainment, marital status, and race are used to predict
future values of variables such as earnings, marital changes, and wealth. For each year, Dynasim
simulates such demographic events as births, deaths, marriages and divorces, and such economic
events as labor force participation, earnings, hours of work, disability onset, and retirement.
The large amount of demographic and income information makes Dynasim particularly suitable
to analyze the distributional effects of various Social Security reform proposals and other issues
relating to the aged population. For example, retired worker Social Security benefits are based on
35 years of a worker’s earning history. Having a tool, such as Dynasim, that contains an
individual’s earning history as well as the individual’s traits over his/her entire career is essential
to modeling Social Security reforms. One such policy option that requires 40 years of a worker’s
earning history is to increase the number of computation years from 35 to 40. In addition to
modeling provisions that require long work histories, we can analyze how benefits change due to
changes in life events (such as a marital status change or the death of a spouse) over the span of
the individual’s lifetime. At the end of the simulation process, we have detailed information on
the lifetimes of multiple individuals, with all of the information needed to calculate Social
Security benefits and total incomes. In addition to workers’ earning histories, the Dynasim model
includes additional retirement income projections useful for analyzing policy options. These
projections include but are not limited to: Social Security coverage, eligibility and benefit levels,
pension coverage and participation, income from assets, and Supplemental Security Income
(SSI).





The Dynasim model was created using a complex combination of various data resources. The
base population is comprised of households from the 1990 through 1993 panels of the Survey of
Income and Program Participation (SIPP). This sample consists of over 100,000 people and

44,000 families and is limited to individuals who answered questions regarding assets and 16


pensions. Annual earnings are created from a mixture of historical and projected data. Earnings
histories are calculated for SIPP respondents by matching individuals from the SIPP to
individuals interviewed in the Panel Study of Income Dynamics (PSID) and to individuals
interviewed in the 1972 Current Population Survey (CPS). The 1972 Current Population Survey
is a unique dataset because it is matched to Social Security Administrative records. The 1972 CPS
is matched to the Social Security Administration’s Summary of Earnings Records and is used to
provide SIPP respondents with earnings between the years 1951 and 1967. The PSID also collects
annual earnings information and provides SIPP respondents with earnings between the years 1968
and 1992.
Once earnings are imputed for the years 1968 through 1992, earnings are then projected for the
years 1993 through 2050. Dynasim uses information from the Panel Study of Income Dynamics
and the National Longitudinal Survey of Youth to project individual earnings from 1993 through

2050 using a series of statistical regression equations. The earnings are projected in 5 steps. First,


hourly wages are estimated using a random-effects model. Second, results from the hourly wage
model are used to calculate predicted wages for all individuals in the PSID. Third, the number of
annual hours worked is predicted using a tobit model that includes the predicted wage results
from the previous regression. In the fourth step, labor force participation is estimated using a
random-effect probit model. Finally, the labor force participation rates are adjusted to reflect
projected employment rates from the OASDI Trustees’ Report by age and gender.
The model utilizes survey data to estimate population growth, family formation, education and
health, earnings, employee benefits, asset accumulation, pension and Social Security benefits, and
payroll taxes. Some of the survey data used to estimate these processes include the Survey of
Income and Program Participation, the Panel Study of Income Dynamics, the Current Population
Survey, the Health and Retirement Survey, the National Longitudinal Mortality Study, the
National Longitudinal Survey of Youth, estimates from the Social Security Administration’s
Office of the Chief Actuary, Vital Statistics, the Pension Simulation Model from the Policy
Simulation Group, and the Pension Insurance Modeling System from the Pension Benefit
Guaranty Corporation. All of these data sources are used to validate and readjust the underlying
data for the Dynasim model as necessary.
Despite the many advantages of using a microsimulation model, such as Dynasim, one must keep
in mind the caveats that are common to the use of microsimulation models, in general. Such
caveats include, but are not limited to:

1. Microsimulation models require the use of a large number of assumptions. For example,


Dynasim utilizes assumptions from the Social Security Administration’s Office of the Chief
Actuary (OCACT) to determine future fertility and mortality patterns and to project

16 The questions regarding assets and pensions can be found in the SIPP long asset/pension topical module wave.





employment rates and wage growth. Individuals who believe that OCACT’s fertility and
mortality assumptions are too optimistic or pessimistic will also have the same views of
Dynasim’s fertility and mortality assumptions. In addition, Dynasim models mortality using an
individual’s age, race/ethnicity, marital status, education, disability status and work history.
There may be other variables that affect mortality that are not used in this model.
2. Like all projections, historical information is used to calculate future information for
individuals such as future earnings, future marital status changes, future pensions, etc. There
may be historical information, however, that will not provide good estimates of future values.
For example, 40 years ago, it could not have been foreseen how technological advancements
would have altered mortality and earnings. Similarly, future technology and medical
advancements will have an effect on the population that can not currently be predicted. A
model, such as Dynasim, would not be able to factor in these kinds of advancements unless
they are already, somehow, accounted for in historical information. Put another way, the model
assumes that the future will resemble the past. The model often uses a variety of techniques
(e.g., cohort effects) to place heavier weight on more recent experience than on less recent
experience. The model projects social and economic change mainly through change in the
composition of the population.
3. Microsimulation models require many assumptions and utilize many specific mathematical
equations. Therefore, care should be taken when interpreting results. For example, because of
their detailed assumptions, microsimulation models better represent relative changes in
benefits rather than exact benefit levels. All microsimulation models are estimates of what a
given population will look like in the future. Because they are estimates, all microsimulation
models contain some level of error. By analyzing relative differences, rather than point
estimates such as average benefits, some of the error is controlled for because the underlying
error will be the same under both options. Thus, microsimulation models will be more accurate
in stating that “Plan A is estimated to result in a 23% increase in benefits over current law”
than stating that “Individuals, under Plan A, receive a monthly benefit of $900” because the
error found in microsimulation models is difficult to quantify, but can be mitigated by
comparing plans across the same population and, in essence, holding the error constant.
In addition to the caveats associated with microsimulation models, there are caveats that are
specific to the Dynasim model. For example:

1. Dynasim does not model the “old law” Social Security benefit rules in place prior to 1979.


Therefore, the benefits for the oldest individuals may not precisely reflect the level of benefits
that they actually received.
2. Dynasim does not include behavioral changes resulting from the modification of the Social
Security benefit and tax structures. Thus, changes to Social Security’s tax or benefit structure
will not automatically alter an individual’s work patterns or retirement decision.
3. Dynasim does not include macroeconomic feedbacks. A change in the Social Security program
can affect other segments of the economy. For example, a benefit cut could have effects on the
labor force participation and the savings rate. These kinds of macroeconomic effects cannot
automatically be modeled using the Dynasim model. Thus, second order microeconomic
effects such as the effect of the savings rate on the interest rate earned by individual accounts
cannot be modeled.





4. This version of Dynasim does not currently include an income tax module. Because Social
Security benefits may be subject to income taxation, reform options that alter the level of
Social Security benefits can also alter the amount of income tax paid by individuals. Although
income taxes cannot be modeled, the amount of Social security payroll taxes paid can easily be
calculated from an individual’s earnings.
5. Dynasim is not a Social Security actuarial model and thus cannot estimate the solvency effect
of a proposed policy change. The Dynasim model does not contain all of the information
required to produce solvency estimates. For example, Dynasim does not calculate children’s
benefits and so a complete account of benefit payments cannot be calculated. In addition,
Dynasim simulates the population between the years 1993 and 2050. The benefits received by
individuals outside of this yearly range would not be included in the calculations. For these
same reasons, long-term cost estimates cannot be calculated.
6. Dynasim incorporates differences in processes on the basis of race/ethnicity where the data
suggest that such differences are significant. The literature is not always definitive on the
magnitude of differences by race, and measurement issues can complicate estimation of such
effects. We thus suggest conservative interpretation of differences by race and Hispanicity.
Despite the caveats related to microeconomic models and specifically to Dynasim, the Urban
Institute’s Dynamic Simulation Model is an extremely useful tool for analyzing the effects of
Social Security reform proposals and other topics related to the aged. The wealth of demographic
and economic information found in the Dynasim model enables CRS to provide members of
Congress with in-depth analysis regarding the distributional effects of reform proposals that
would not be possible without the use of a microsimulation model.






Actuarially Fair In the context of Social Security, holding constant the value of lifetime Social Security
benefits for a person of average life expectancy, regardless of when he or she takes up
benefits. For example, the early retirement reduction and delayed retirement credit were
intended to make lifetime Social Security benefits equal in actuarial terms regardless of
when beneficiaries began to collect benefits.
Adequacy In the context of Social Security, the goal of providing some basic level of income to
beneficiaries. Measures of benefit adequacy include poverty rates and replacement rates.
Average Indexed The average monthly amount of a worker’s taxable earnings, which is wage indexed (or
Monthly Earnings adjusted to reflect increasing wages) and used to determine the primary insurance amount
(AIME) (PIA) when a worker applies for Social Security benefits. In the average indexed monthly
earnings (AIME) calculation for a retired worker, the highest 35 years of taxable earnings
are wage indexed, averaged, and divided by 12. Fewer years of earnings may be used to
calculate the AIMEs of workers who die or become disabled.
Average Wage Index The average amount of total national wages for each year after 1950, as measured by
(AWI) annual wage data tabulated by the Social Security Administration (SSA). The Average
Wage Index (AWI) includes earnings that are not covered and/or taxable by Social
Security. The AWI is used for wage indexing values in the Social Security program.
Baseline In the context of this report, current law Social Security benefits and payroll taxes,
against which Social Security benefits and payroll taxes under various alternative policies
are compared. Also see payable baseline and scheduled baseline.
Basic Benefit Amount See primary insurance amount (PIA).
Basic Benefit Formula See primary insurance amount (PIA) formula.
Bend Points The dollar amounts that define the brackets in the primary insurance amount (PIA) formula
used to calculate basic Social Security benefits. The bend points are wage indexed, or
adjusted annually to reflect increasing wages. In 2006, the bend points were $656 and
$3,955. The use of bend points in the Social Security benefit formula creates a progressive
benefit structure, where lower earners receive proportionately higher benefits, relative
to covered earnings, than do higher earners.
Cohort A group of individuals sharing a particular characteristic and studied over time. For
example, a birth cohort is a group of individuals born in the same year or period of time.
Computation Years The years of earnings used to calculate a worker’s average indexed monthly earnings
(AIME) in the Social Security benefit formula. For retirement benefits, the highest 35
years of earnings are used. For disability and survivor benefits, the number of
computation years depends on the age when the wage earner became disabled or died;
the number of computation years varies from 2 to 35.
Consumer Price An official measure of inflation (i.e., the change over time in prices) calculated by the U.S.
Index (CPI) Department of Labor. The Social Security program uses the Consumer Price Index for
Urban Wage Earners and Clerical Workers (CPI-W) to calculate annual cost-of-living
adjustments (COLA) to benefits.
Cost-of-Living The annual increase in Social Security benefits reflecting the increase in the cost of living
Adjustment (COLA) (i.e., inflation), as measured by the Consumer Price Index (CPI-W). The cost-of-living
adjustment (COLA) is effective in December of each year and is calculated as the change
in the CPI-W from the third calendar quarter of the prior year to the third calendar
quarter of the current year. If the CPI-W increases during this period, Social Security
benefits for the next year increase proportionately. If the CPI-W decreases, Social
Security benefits stay the same.
Contribution and See taxable earnings base.


Benefit Base



Covered Earnings Earnings from a job which requires contributions to the Social Security program. (See
covered worker for more information.) All covered earnings below the taxable wage
base—that is, taxable earnings—are subject to Social Security payroll taxes. Covered
earnings above the taxable wage base are exempt from the Social Security payroll tax.
Covered Worker A worker who is employed in a job at which he or she contributes a portion of earnings
to Social Security, or a worker who is self-employed. Workers not covered by Social
Security are either covered by a similar eligible contributory system offered by their
employers outside of Social Security, do not have high enough earnings for mandatory
participation, or have another special exemption. (About 96% of all workers are covered
by Social Security.)
Credits To be insured for retired worker benefits, an individual must accumulate at least 40 credits
in the Social Security system, which is equivalent to at least 10 years of covered
employment. In 2006, a worker received one credit (up to a total of four per year) for
each $970 in covered earnings. Fewer credits may be required in some survivor and
disability cases; in these cases, benefits may be granted with as few as six credits. The
amount of earnings required for a credit is wage indexed.
Delayed Retirement An increase to the primary insurance amount (PIA) if a beneficiary delays claiming Social
Credit (DRC) Security benefits beyond his or her full retirement age (FRA). The amount of the increase
varies depending on the beneficiary’s date of birth and how long a beneficiary delays
benefit take-up beyond his or her FRA. However, the increase stops when a person
reaches age 70, even if he or she continues to delay taking up benefits.
Disabled For Social Security purposes, a person who is unable to work because of a physical or
mental impairment that can be expected to result in death or to last for a continuous
period of at least one year. Disabled individuals under the age of 62 may qualify for Social
Security disability benefits (after which they qualify for retirement benefits). No benefits
are payable for short-term disability or partial disability.
Distributional A method of analyzing how the costs and benefits of a program or a policy option are
Analysis distributed among different subgroups (e.g., birth cohort or income level).
Dually Entitled Workers who qualify for Social Security benefits based on their own work records (i.e.,
Beneficiaries worker benefits) as well as benefits based on their spouses’ work records (i.e., spouse
benefits or survivor benefits). Dually entitled beneficiaries receive a total Social Security
benefit that is the higher of the worker benefit and the spouse/survivor benefit to which
they are entitled, not the sum of the two benefits.
Early Retirement Age The age at which individuals qualify for reduced Social Security retired worker benefits if
they choose to collect benefits before the full retirement age (FRA). The early retirement
age is 62. Individuals who begin to receive retired worker benefits early will be subject to
the early retirement reduction. (Also called the early eligibility age.)
Early Retirement The amount which a person’s monthly Social Security benefit is permanently reduced for
Reduction taking up retirement benefits before the full retirement age (FRA). The amount of the
reduction varies depending on the beneficiary’s date of birth and how long before his or
her FRA that he or she takes up benefits. The maximum amount of the reduction ranges
from 20% to 30%, depending on the year in which the worker was born (because of the
increase in the FRA). The early retirement reduction is intended to be actuarially fair.
Earnings Wages or self-employment income. Also see covered earnings and taxable earnings.
Eligibility To be eligible for Social Security benefits, a worker (or his or her family members) must
be insured and must meet age, disability status, family relationship, and/or other criteria
established by law.
Entitlement Any federal program—including Social Security—that legally requires payments to any
individual who meets the eligibility criteria established by law. (To be entitled to Social
Security benefits, an individual must meet eligibility criteria and file an application for
benefits.) Generally, entitlement programs are not subject to the annual appropriations
process.





FICA (Federal See payroll taxes.
Insurance
Contributions Act)
Taxes
Full Retirement Age The age at which an individual may first become entitled to unreduced Social Security
(FRA) retirement benefits. The full retirement age (FRA) was age 65 for most of Social
Security’s history, and is now gradually increasing to age 67. In 2006, the FRA was 65
years and 6 months. (Also called the normal retirement age.)
Hold Harmless In the context of Social Security, a group of beneficiaries is held harmless if benefit cuts
and/or tax increases are not applied to that group.
Income In the context of this report, Dynasim projections of total income in the year 2035,
including Social Security benefits, defined-benefit pension benefits, income from
retirement accounts, earnings, SSI, and the annuitized value of financial assets. Individuals
are the unit of observation, but income estimates include income of the spouse, if the
individual is married.
Inflation (Prices) A rate of increase in the general price level of all goods and services. The official measure
of inflation in the United States is the Consumer Price Index.
Insolvency In the context of Social Security, the inability of the trust funds to pay all current
expenses out of current tax income and accumulated trust fund assets. Insolvency would
mean that Social Security’s trust funds were unable to pay full benefits on time.
(Insolvency would not mean that Social Security would be completely broke and unable
to pay any benefits.)
Insured In the context of Social Security, having enough credits to meet eligibility requirements for
retired or disabled worker benefits, or to permit the worker’s spouse and children or
survivors to establish eligibility for benefits in the event of the worker’s retirement,
disability, or death.
Intermediate The Social Security Administration actuaries’ “best estimate” of future demographic and
Assumptions economic trends. The actuaries also produce high cost (pessimistic) assumptions and low
cost (optimistic) assumptions. These assumptions are published annually in the Social
Security Trustees Report. This report uses the Trustees’ intermediate assumptions.
Life Expectancy An estimate of the average remaining number of years expected prior to death for a
given cohort. In the context of Social Security, life expectancy at age 65 is most
commonly used.
Long Range In the context of Social Security, the next 75 years. Long-range actuarial estimates are
made for this period because it is approximately the maximum remaining lifetime of
workers currently covered by Social Security. The annual Social Security Trustees Report
includes long-range projections of Social Security’s financial status. (See also short range.)
Mean The mean is the average value in a data set. It is determined by adding all the values and
dividing the sum by the number of values in the data set. In this report, the median is
generally used instead of the mean.
Median The middle number in a series of numbers arranged from least to greatest. Half the data
values are above the median, and half are below. The value of a median is not affected by
a few extremely high or extremely low values, as a mean would be.
Microsimulation In the context of policy analysis, a computer model that simulates how a government
Model program would operate under policy changes and how participants would be affected.
For more information on the Dynasim microsimulation model used in this report, please
see Appendix E.
Nominal Dollars The face value of an amount of money during a given year, using the prices prevailing
during that year. Nominal dollars are not adjusted for inflation.
Normal Retirement See full retirement age (FRA).


Age (NRA)



Payable Baseline In the context of Social Security, a baseline that includes benefits payable with current tax
income and accumulated trust fund assets, even if those benefits are less than those
which would be paid according to the formula set forth in the law. Payable benefits would
be less than scheduled benefits in the case of Social Security insolvency. (See also scheduled
benefits.)
Payroll Tax In the context of Social Security, a tax levied on all covered earnings, up to the contribution
wage base in a given year. The Social Security payroll tax is paid in equal parts by
employers and employees. Currently the Social Security payroll tax rate is 12.4% (of
which 6.2% is paid by each employee and employer). Payroll taxes are also known as
FICA (Federal Insurance Contributions Act) or SECA (Self-Employment Contributions
Act) taxes. FICA and SECA taxes include both the Social Security tax and a Medicare
Hospital Insurance tax of 2.9% of all covered earnings (of which 1.45% is paid by each
employee and employer).
Price Indexing In the context of Social Security, a proposed alternative method of calculating benefits.
The most commonly discussed form of price indexing would increase individuals’ benefit
levels at the rate of price growth (i.e., inflation) rather than at the rate of wage growth (as
under current law). Under this form of price indexing, the primary insurance amount (PIA)
factors would be multiplied each year by the ratio of the Consumer Price Index (CPI) to the
Average Wage Index (AWI) for the second prior year. Under a system of price indexing,
beneficiaries’ Social Security benefits would be lower than under current law. (Other
parts of the Social Security benefit formula which are wage indexed under current law,
such as bend points, could also be price indexed, but the term “price indexing” is typically
used in reference to reducing the PIA factors.)
Primary Insurance The monthly Social Security benefit amount payable to a retired worker who begins to
Amount (PIA) receive benefits at the full retirement age (FRA) or, generally, to a disabled worker. This
amount, which is based on the worker’s average indexed monthly earnings (AIME), is also
used to calculate benefits payable on the worker’s earnings record—for example,
benefits paid to his or her spouse or survivors. Also referred to as a basic benefit
amount. For more information on the PIA calculation, please refer to Appendix A.
Primary Insurance The factors by which the dollar amounts in the primary insurance amount (PIA) formula are
Amount (PIA) multiplied. The PIA factors are 90%, 32% and 15%; each is applied to a worker’s average
Factors indexed monthly earnings (AIME) amounts between the bend points in the PIA formula.
Primary Insurance The formula to calculate the primary insurance amount (PIA) for workers who attain age
Amount (PIA) 62, become disabled, or die after 1978. The PIA is equal to 90% of a worker’s average
Formula indexed monthly earnings (AIME) up to the first bend point, plus 32% of AIME between the
first and second bend points, plus 15% of AIME above the second bend point.
Progressive A system in which lower earners receive proportionately higher benefits (or pay
proportionately lower taxes) than do higher earners. The Social Security benefit formula
is progressive.
Purchasing Power The amount of goods and services that a given amount of money can buy. In the context
of Social Security, beneficiaries receive an annual cost-of-living adjustment (COLA) in which
benefits are adjusted according to the growth in prices (i.e., inflation) as a way to maintain
the purchasing power of benefits over the course of a beneficiaries lifetime.
Quarters of Coverage See credits.
Quintile One of five segments of a distribution that has been divided into fifths. For example, an
individual in the second-from-the-bottom quintile of an income distribution is one whose thth
income falls between the 20 and 40 percentile of the income of the population. In this
report, income quintiles are used to illustrate the effects of policy changes on individuals
of different income levels.
Real Dollars The value of an amount of money measured in terms of purchasing power in a given year.
Real dollars are adjusted for inflation. In this report, real values are in 2005 dollars.
Regressive A system in which lower earners pay proportionately higher taxes (or receive
proportionately lower benefits) than do higher earners. The Social Security payroll tax is
regressive, since the tax rate is flat and the amount of taxable earnings is capped.





Replacement Rate In the context of Social Security, the proportion of taxable earnings before retirement
that are replaced by benefits. A Social Security replacement rate is calculated by dividing a
worker’s initial Social Security benefit by his or her average indexed monthly earnings
(AIME). Replacement rates are one way of measuring the adequacy of a person’s benefits.
Retirement Earnings A provision of the law which reduces Social Security benefits on account of earnings from
Test (RET) work before the full retirement age (FRA). In 2006, the RET applied to beneficiaries earning
more than $12,480 before the year in which they reach the FRA, and to beneficiaries
earning more than $33,240 during the year in which they reach the FRA (i.e., during the
months before their birthdays). For more information on the RET, please see Appendix
C.
Scheduled Baseline In the context of Social Security, a baseline that includes benefits according to the formula
set forth in the law, regardless of whether those benefits would be payable with current
tax income and accumulated trust fund assets. Scheduled benefits would be greater than
payable benefits in the case of Social Security insolvency. (See also payable baseline.)
Short Range In the context of Social Security, the next 10 years. The annual Social Security Trustees
Report includes short-range projections of Social Security’s financial status. (See also long
range.)
Social Insurance A system that insures workers and their families against economic insecurity caused by
the loss of earnings or health care due to some event (e.g., retirement, unemployment,
disability, or death). Benefit amounts are based on workers’ and employers’ contributions
to the social insurance system. Social Security is a system of social insurance.
Solvency In the context of Social Security, the ability to pay scheduled benefits when due out of
current tax income and accumulated trust fund assets. Social Security is considered
solvent as long as the Social Security trust funds maintain a positive balance.
Spouse Benefits Social Security benefits payable to the spouse or divorced spouse of a retired or disabled
worker, based on the worker’s earnings record. The primary insurance amount (PIA) for a
spouse beneficiary is generally 50% of his or her spouse’s PIA. For more information on
how spouse benefits are calculated, please see Appendix B.
Survivor Benefits Social Security benefits payable to the survivors of a deceased worker, based on the
worker’s earnings record. Potential survivor beneficiaries include widow(er)s, former
spouses, children, and parents of the deceased worker. The primary insurance amount (PIA)
for an aged widow or widower is 100% of his or her deceased spouse’s actual benefit
amount (i.e., the deceased spouse’s PIA after applying the early retirement reduction or
delayed retirement credit (DRC), if applicable). Other types of survivor benefits—child’s,
mother’s, father’s, and parent’s benefits—are not analyzed in this report. For more
information on how survivor benefits are calculated, please see Appendix B.
Taxable Earnings In the context of Social Security, wages and/or self-employment income earned in covered
employment that is less than the taxable earnings base. (About 85% of covered earnings
were taxable in 2005.)
Taxable Earnings The maximum annual amount of covered earnings that are subject to Social Security
Base payroll taxes and credited toward Social Security benefits. Covered earnings above this
amount are neither taxable nor creditable for benefit computation purposes. The amount
of the taxable earnings base is wage indexed (i.e., rises each year with overall wage
growth). In 2006, the amount of the taxable earnings base was $94,200. (Also called the
contribution and benefit base, taxable wage base, or the taxable maximum.)
Taxable Maximum See taxable earnings base.
Wage Indexation In the context of Social Security, a method by which dollar values are adjusted to account
for the annual growth in national wages. The Average Wage Index (AWI) is used to
increase values in the Social Security program, including the average indexed monthly
earnings (AIME) formula, the taxable wage base, the bend points in the primary insurance
amount (PIA) formula, and the retirement earnings test (RET) exempt amounts.
Worker Benefits Social Security benefits payable to a retired or disabled worker, based on his or her own
earnings record.





Laura Haltzel Dawn Nuschler
Specialist in Income Security Specialist in Income Security
lhaltzel@crs.loc.gov, 7-4895 dnuschler@crs.loc.gov, 7-6283
Kathleen Romig Gary Sidor
Analyst in Income Security Information Research Specialist
kromig@crs.loc.gov, 7-3742 gsidor@crs.loc.gov, 7-2588
Scott Szymendera Mikki Devine Waid
Analyst in Disability Policy Applications Developer, Client-Server and WEB
sszymendera@crs.loc.gov, 7-0014 mwaid@crs.loc.gov, 7-3908
Debra B. Whitman