
Series for figures and tables in the paper
Earnings Inequality and Mobility in the United States: Evidence from Social Security Data since
1937
by
Wojciech Kopczuk,
Emmanuel Saez and Jae Song are linked below on this page.
The paper was published in
Quarterly Journal of Economics, 2010, 125(1), 91128.
Note: the previous version of this paper was circulated as Uncovering the American Dream:
Inequality and Mobility in Social Security Earnings Data since 1937 and is available as the
NBER working paper #13345. There are differences in the definition of the sample used in the two
versions although qualitative findings are not affected. The series used in the previous
version are available as well.
If you use any of this data, you should cite the paper as
the source of the data and for the description of
methodology. The web appendix with complete details is here.
Figure 1: Gini Coefficient Series
Figure 2: Percentile ratios Log(P80/P50) and Log(P50/P20)
Figure 3: Gini coefficient: Annual Earnings vs 5Year Earnings
Figure 4: Mobility Series: Shorrocks Index and Rank Correlation
Figure 5: Variance of Annual, Permanent and Transitory (log) Earnings
Figure 6A: Top 1% Earnings Share: Annual vs 5Year
Figure 6B: Probability of Staying in the Top 1%
Figure 7: LongTerms Earnings Gini Coefficient Series
Figure 8: LongTerm Mobility: Rank Correlation in 11 Year Earnings Spans
Figure 9: LongTerm Earnings Gini Coefficients by Birth Cohort
Figure 10: Gender Gap in Upper Earnings Groups
Figure 11: LongTerm Upward Mobility: Gender Effects
Figure A1: Average Real Earnings and Number of Workers in Core Sample
Figure A2: Average Earnings and Number of Workers in Alternative Samples
Figure A3: Annual Earnings Gini Coefficient Sensitivity
Figure A4: Percentile Ratios Sensitivity
Figure A5: 5Year Earnings Average Gini Coefficients Sensitivity
Figure A6: Year to Year Rank Correlation Sensitivity
Figure A7: Transitory Variance Sensitivity
Figure A8: 11Year Earnings Average Gini Coefficients Sensitivity
Figure A9: LongTerm Rank Correlation Sensitivity
Figure A10: LongTerm Upward Mobility and Gender: CohortBased Estimates
Table I  Annual Earnings Inequality
Table II  FiveYear Average Earnings Inequality and ShortTerm Mobility
Table III  LongTerm Inequality and Mobility
