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The Effect of Part-Time Work on Wages: Evidence from the Social Security Rules

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Author Info

  • Daniel Aaronson

    (Federal Reserve Bank of Chicago)

  • Eric French

    (Federal Reserve Bank of Chicago)

Abstract

This article identifies the part-time wage effect, using hours variation caused by the social security rules. We show that work hours and wages drop sharply at ages 62 and 65. We argue that the hours decline causes the wage decline, resulting in a 25% wage penalty for men who cut their work week from 40 to 20 hours. However, we find little evidence for such an effect among women. We also show that models that fail to account for the joint determination of hours and wages will understate the labor supply response to a tax change by about 26%.

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Bibliographic Info

Article provided by University of Chicago Press in its journal Journal of Labor Economics.

Volume (Year): 22 (2004)
Issue (Month): 2 (April)
Pages: 329-352

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Handle: RePEc:ucp:jlabec:v:22:y:2004:i:2:p:329-352

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Web page: http://www.journals.uchicago.edu/JOLE/

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References

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  1. Eric French, 2004. "The Effects of Health, Wealth and Wages on Labor Supply and Retirement Behavior," 2004 Meeting Papers 96, Society for Economic Dynamics.
  2. Lundberg, Shelly J, 1985. "Tied Wage-Hours Offers and the Endogeneity of Wages," The Review of Economics and Statistics, MIT Press, vol. 67(3), pages 405-10, August.
  3. Alan L. Gustman & Thomas L. Steinmeier, 1986. "A Structural Retirement Model," NBER Working Papers 1237, National Bureau of Economic Research, Inc.
  4. MaCurdy, Thomas E, 1981. "An Empirical Model of Labor Supply in a Life-Cycle Setting," Journal of Political Economy, University of Chicago Press, vol. 89(6), pages 1059-85, December.
  5. Hirsch, Barry, 2004. "Why Do Part-Time Workers Earn Less? The Role of Worker and Job Skills," IZA Discussion Papers 1261, Institute for the Study of Labor (IZA).
  6. Nada Eissa & Jeffrey B. Liebman, 1995. "Labor Supply Response to the Earned Income Tax Credit," NBER Working Papers 5158, National Bureau of Economic Research, Inc.
  7. Rosen, Harvey S, 1976. "Taxes in a Labor Supply Model with Joint Wage-Hours Determination," Econometrica, Econometric Society, vol. 44(3), pages 485-507, May.
  8. Blomquist, N Soren, 1985. "Labour Supply in a Two-Period Model: The Effect of a Nonlinear Progressive Income Tax," Review of Economic Studies, Wiley Blackwell, vol. 52(3), pages 515-24, July.
  9. Joseph Altonji, 1984. "Intertemporal Substitution in Labor Supply: Evidence from Micro Data," Working Papers 562, Princeton University, Department of Economics, Industrial Relations Section..
  10. Bound, John & Brown, Charles & Mathiowetz, Nancy, 2001. "Measurement error in survey data," Handbook of Econometrics, in: J.J. Heckman & E.E. Leamer (ed.), Handbook of Econometrics, edition 1, volume 5, chapter 59, pages 3705-3843 Elsevier.
  11. Browning, Martin & Deaton, Angus & Irish, Margaret, 1985. "A Profitable Approach to Labor Supply and Commodity Demands over the Life-Cycle," Econometrica, Econometric Society, vol. 53(3), pages 503-43, May.
  12. Barzel, Yoram, 1973. "The Determination of Daily Hours and Wages," The Quarterly Journal of Economics, MIT Press, vol. 87(2), pages 220-38, May.
  13. Lettau, Michael K., 1997. "Compensation in part-time jobs versus full-time jobs What if the job is the same?," Economics Letters, Elsevier, vol. 56(1), pages 101-106, September.
  14. Lazear, Edward P, 1981. "Agency, Earnings Profiles, Productivity, and Hours Restrictions," American Economic Review, American Economic Association, vol. 71(4), pages 606-20, September.
  15. Wayne Simpson, 1986. "Analysis of Part-Time Pay in Canada," Canadian Journal of Economics, Canadian Economics Association, vol. 19(4), pages 798-807, November.
  16. Heckman, James J, 1976. "A Life-Cycle Model of Earnings, Learning, and Consumption," Journal of Political Economy, University of Chicago Press, vol. 84(4), pages S11-44, August.
  17. Heckman, James J & Macurdy, Thomas E, 1980. "A Life Cycle Model of Female Labour Supply," Review of Economic Studies, Wiley Blackwell, vol. 47(1), pages 47-74, January.
  18. Alan L. Gustman & Olivia S. Mitchell & Andrew A. Samwick & Thomas L. Steinmeier, . "Evaluating Pension Entitlements," Pension Research Council Working Papers 98-20, Wharton School Pension Research Council, University of Pennsylvania.
  19. Ruhm, Christopher J, 1990. "Bridge Jobs and Partial Retirement," Journal of Labor Economics, University of Chicago Press, vol. 8(4), pages 482-501, October.
  20. Nelson, Charles R & Startz, Richard, 1990. "Some Further Results on the Exact Small Sample Properties of the Instrumental Variable Estimator," Econometrica, Econometric Society, vol. 58(4), pages 967-76, July.
  21. Hotchkiss, Julie L, 1991. "The Definition of Part-Time Employment: A Switching Regression Model with Unknown Sample Selection," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 32(4), pages 899-917, November.
  22. Moffitt, Robert, 1984. "The Estimation of a Joint Wage-Hours Labor Supply Model," Journal of Labor Economics, University of Chicago Press, vol. 2(4), pages 550-66, October.
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