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. Author manuscript; available in PMC: 2021 Dec 1.
Published in final edited form as: Child Youth Serv Rev. 2020 Oct 29;119:105615. doi: 10.1016/j.childyouth.2020.105615

Table 1:

Decomposition of Gini Coefficient by Welfare Era: 1968-2016 March Current Population Survey

Family Structure and Demographic Adjusted Estimates
Welfare
Expansion
1968-
1980
AFDC
Reform
Era I
1981-
1987
AFDC
Reform
Era II
1981-
1995
PWORA
Era Pre-
Recession
1996-
2007
PWORA
Era Post-
Recession
2008-
2016
Components of Gini Decomposition
Share of Income (Sk)
  Earned 87.7% 84.5% 82.4% 81.2% 74.2%
  Welfare 1.2% 1.3% 1.3% 0.8% 0.6%
  Investment 1.6% 2.1% 1.8% 1.8% 1.4%
  Other Income 4.2% 4.8% 4.9% 4.4% 4.8%
  In Kind 5.4% 7.4% 9.6% 11.7% 19.0%
Gini Coefficient (Gk)
  Total Income 0.29 0.31 0.30 0.30 0.30
  Earned 0.35 0.39 0.41 0.41 0.44
  Welfare 0.95 0.94 0.93 0.95 0.96
  Investment 0.97 1.00 0.99 0.98 0.99
  Other Income 0.87 0.85 0.85 0.86 0.87
  In Kind 0.80 0.83 0.80 0.76 0.69
Correlation (Rk)
  Earned 0.92 0.89 0.88 0.88 0.83
  Welfare −0.35 −0.26 −0.22 −0.19 −0.15
  Investment 0.54 0.53 0.57 0.62 0.66
  Other Income −0.03 0.01 0.07 0.12 0.14
  In Kind 0.11 0.00 −0.04 −0.05 0.13
Estimated Impact of Income Components on Total Inequality
Proportionate Contribution to Total Inequality
  Earned 97.4% 97.3% 97.5% 96.8% 89.8%
  Welfare −1.4% −1.0% −0.9% −0.5% −0.3%
  Investment 2.8% 3.7% 3.4% 3.7% 3.1%
  Other Income −0.3% 0.1% 1.0% 1.5% 1.9%
  In Kind 1.6% −0.1% −1.0% −1.5% 5.5%
Elasticity
  Earned 0.097 0.128 0.151 0.156 0.157
  Welfare −0.026 −0.023 −0.022 −0.013 −0.009
  Investment 0.012 0.016 0.015 0.018 0.017
  Other Income −0.045 −0.046 −0.039 −0.029 −0.029
  In Kind −0.038 −0.074 −0.106 −0.132 −0.135