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Why Did the SSI-Disabled Program Grow So Much? Disentangling the Effect of Medicaid

  • Aaron Yelowitz

    (UCLA)

The number of participants in the SSI program grew by 1.1 million from 1987 to 1993. This paper examines the role of Medicaid on the SSI participation decision. I use the rapid growth in average Medicaid expenditure as a proxy for its value. OLS estimates of Medicaid's effect may be biased because of omitted variables bias and measurement error. I therefore apply two-stage least squares to estimate Medicaid's effect, using average Medicaid expenditure for blind SSI recipients as an instrument. These estimates show that rising Medicaid expenditure significantly increased SSI participation among adults with low permanent incomes, explaining 20 percent of the growth.

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File URL: http://www.econ.ucla.edu/workingpapers/wp748.pdf
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Paper provided by UCLA Department of Economics in its series UCLA Economics Working Papers with number 748.

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Date of creation: 01 Feb 1996
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Handle: RePEc:cla:uclawp:748
Contact details of provider: Web page: http://www.econ.ucla.edu/

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  1. Madrian, Brigitte C, 1994. "Employment-Based Health Insurance and Job Mobility: Is There Evidence of Job-Lock?," The Quarterly Journal of Economics, MIT Press, vol. 109(1), pages 27-54, February.
  2. Moffitt, Robert & Ribar, David & Wilhelm, Mark, 1998. "The decline of welfare benefits in the U.S.: the role of wage inequality," Journal of Public Economics, Elsevier, vol. 68(3), pages 421-452, June.
  3. A. S. Yelowitz, . "Using the Medicare Buy-In Program to Estimate the Effect of Medicaid on SSI Participation," Institute for Research on Poverty Discussion Papers 1102-96, University of Wisconsin Institute for Research on Poverty.
  4. Lundberg, S. & Plotnick, R.D., 1994. "Adolescent Premarital Childbearing: Do Economic Incentives Matters?," Working Papers 94-4, University of Washington, Department of Economics.
  5. Jeff Grogger & Stephen G. Bronars, 1997. "The Effect of Welfare Payments on the Marriage and Fertility Behavior of Unwed Mothers: Results from a Twins Experiment," NBER Working Papers 6047, National Bureau of Economic Research, Inc.
  6. Anne E. Winkler, 1991. "The Incentive Effects of Medicaid on Women's Labor Supply," Journal of Human Resources, University of Wisconsin Press, vol. 26(2), pages 308-337.
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  9. Currie, Janet & Gruber, Jonathan & Fischer, Michael, 1995. "Physician Payments and Infant Mortality: Evidence from Medicaid Fee Policy," American Economic Review, American Economic Association, vol. 85(2), pages 106-11, May.
  10. Jonathan Gruber & Brigitte C. Madrian, 1994. "Health Insurance and Job Mobility: The Effects of Public Policy on Job-Lock," ILR Review, Cornell University, ILR School, vol. 48(1), pages 86-102, October.
  11. Janet Currie & Jonathan Gruber, 1994. "Saving Babies: The Efficacy and Cost of Recent Expansions of Medicaid Eligibility for Pregnant Women," NBER Working Papers 4644, National Bureau of Economic Research, Inc.
  12. Yelowitz, Aaron S, 1995. "The Medicaid Notch, Labor Supply, and Welfare Participation: Evidence from Eligibility Expansions," The Quarterly Journal of Economics, MIT Press, vol. 110(4), pages 909-39, November.
  13. Moffitt, Robert & Wolfe, Barbara L, 1992. "The Effect of the Medicaid Program on Welfare Participation and Labor Supply," The Review of Economics and Statistics, MIT Press, vol. 74(4), pages 615-26, November.
  14. Moulton, Brent R., 1986. "Random group effects and the precision of regression estimates," Journal of Econometrics, Elsevier, vol. 32(3), pages 385-397, August.
  15. James J. Heckman & Thomas E. MaCurdy, 1985. "A Simultaneous Equations Linear Probability Model," Canadian Journal of Economics, Canadian Economics Association, vol. 18(1), pages 28-37, February.
  16. R. A. Moffitt, . "The effect of work and training programs on entry and exit from the welfare caseload," Institute for Research on Poverty Discussion Papers 1025-93, University of Wisconsin Institute for Research on Poverty.
  17. Moffitt, Robert, 1983. "An Economic Model of Welfare Stigma," American Economic Review, American Economic Association, vol. 73(5), pages 1023-35, December.
  18. B. Wolfe & S. C. Hill, . "The effect of health on the work effort of low-income single mothers," Institute for Research on Poverty Discussion Papers 979-92, University of Wisconsin Institute for Research on Poverty.
  19. Joshua D. Angrist, 1991. "Instrumental Variables Estimation of Average Treatment Effects in Econometrics and Epidemiology," NBER Technical Working Papers 0115, National Bureau of Economic Research, Inc.
  20. Rebecca M. Blank, 1989. "The Effect of Medical Need and Medicaid on AFDC Participation," Journal of Human Resources, University of Wisconsin Press, vol. 24(1), pages 54-87.
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