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Are Earnings Profiles Steeper Than Productivity Profiles? Evidence from Israeli Firm-Level Data

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  • Judith K. Hellerstein
  • David Neumark

Abstract

We test competing explanations of rising age-earnings profiles by obtaining direct estimates of marginal productivity differentials between workers in different age groups and comparing these to associated earnings differentials, using contemporary data from Israeli manufacturing firms. The results indicate that, controlling for other productive inputs and firm characteristics, for the unskilled or less-skilled workers who represent most of the workers in our sample, both earnings and productivity profiles are upward sloping. Moreover, these profiles mirror each other closely, and are statistically indistinguishable. However, the estimates of the profiles are sufficiently imprecise that even sizable deviations between point estimates of earnings growth and productivity growth would not be statistically significant. While we view the results as most consistent with a general human capital model of rising earnings profiles over the life cycle, there is not strong evidence with which to reject alternative models.

Suggested Citation

  • Judith K. Hellerstein & David Neumark, 1995. "Are Earnings Profiles Steeper Than Productivity Profiles? Evidence from Israeli Firm-Level Data," Journal of Human Resources, University of Wisconsin Press, vol. 30(1), pages 89-112.
  • Handle: RePEc:uwp:jhriss:v:30:y:1995:i:1:p:89-112
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    References listed on IDEAS

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    1. Ben-Porath, Yoram, 1973. "Labor-Force Participation Rates and the Supply of Labor," Journal of Political Economy, University of Chicago Press, vol. 81(3), pages 697-704, May-June.
    2. Richard B. Freeman & James L. Medoff, 1982. "The Youth Labor Market Problem in the United States: An Overview," NBER Chapters,in: The Youth Labor Market Problem: Its Nature, Causes, and Consequences, pages 35-74 National Bureau of Economic Research, Inc.
    3. Arthur M. Okun, 1973. "Upward Mobility in a High-Pressure Economy," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 4(1), pages 207-262.
    4. Kim B. Clark & Lawrence H. Summers, 1982. "Labour Force Participation: Timing and Persistence," Review of Economic Studies, Oxford University Press, vol. 49(5), pages 825-844.
    5. George L. Perry, 1977. "Potential Output and Productivity," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 8(1), pages 11-60.
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