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Employer Learning and Statistical Discrimination

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Author Info
Joseph G. Altonji
Charles R. Pierret

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Abstract

We provide a test for statistical discrimination or "rational" stereotyping in environments in which agents learn over time. Our application is to the labor market. If profit maximizing firms have limited information about the general productivity of new workers, they may choose to use easily observable characteristics such as years of education to "statistically discriminate" among workers. As firms acquire more information about a worker, pay will become more dependent on actual productivity and less dependent on easily observable characteristics or credentials that predict productivity. Consider a wage equation that contains both the interaction between experience and a hard-to-observe variable that is positively related to productivity, and the interaction between experience and a variable that firms can easily observe, such as years of education. We show that the wage coefficient on the unobservable productivity variable should rise with time in the labor market and the wage coefficient on education should fall. We investigate this proposition using panel data on education, the AFQT test, father's education, and wages for young men and their siblings from NLSY. We also examine the empirical implications of statistical discrimination on the basis of race. Our results support the hypothesis of statistical discrimination, although they are inconsistent with the hypothesis that firms fully utilize the information in race. Our analysis has wide implications for the analysis of the determinants of wage growth and productivity and the analysis of statistical discrimination in the labor market and elsewhere.

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Paper provided by Institute for Policy Resarch at Northwestern University in its series IPR working papers with number 97-18.

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Handle: RePEc:wop:nwuipr:97-18

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Lang, Kevin, 1986. "A Language Theory of Discrimination," The Quarterly Journal of Economics, MIT Press, vol. 101(2), pages 363-82, May. [Downloadable!] (restricted)
  2. Farber, Henry S & Gibbons, Robert, 1996. "Learning and Wage Dynamics," The Quarterly Journal of Economics, MIT Press, vol. 111(4), pages 1007-47, November. [Downloadable!] (restricted)
  3. Holzer, Harry J, 1988. "Search Method Use by Unemployed Youth," Journal of Labor Economics, University of Chicago Press, vol. 6(1), pages 1-20, January. [Downloadable!] (restricted)
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  4. Carmichael, H Lorne, 1989. "Self-Enforcing Contracts, Shirking, and Life Cycle Incentives," Journal of Economic Perspectives, American Economic Association, vol. 3(4), pages 65-83, Fall. [Downloadable!] (restricted)
  5. Murphy, Kevin M & Welch, Finis, 1992. "The Structure of Wages," The Quarterly Journal of Economics, MIT Press, vol. 107(1), pages 285-326, February. [Downloadable!] (restricted)
  6. Albrecht, James W., 1981. "A procedure for testing the signalling hypothesis," Journal of Public Economics, Elsevier, vol. 15(1), pages 123-132, February. [Downloadable!] (restricted)
  7. Gibbons, Robert & Katz, Lawrence F, 1991. "Layoffs and Lemons," Journal of Labor Economics, University of Chicago Press, vol. 9(4), pages 351-80, October. [Downloadable!] (restricted)
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  8. Borjas, George J, 1992. "Ethnic Capital and Intergenerational Mobility," The Quarterly Journal of Economics, MIT Press, vol. 107(1), pages 123-50, February. [Downloadable!] (restricted)
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  9. Richard J. Murnane & John B. Willett & Frank Levy, 1995. "The Growing Importance of Cognitive Skills in Wage Determination," NBER Working Papers 5076, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  10. Edward P. Lazear, 1984. "Raids and Offermatching," NBER Working Papers 1419, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  11. Lundberg, Shelly J & Startz, Richard, 1983. "Private Discrimination and Social Intervention in Competitive Labor Markets," American Economic Review, American Economic Association, vol. 73(3), pages 340-47, June. [Downloadable!] (restricted)
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  12. Jovanovic, Boyan, 1979. "Job Matching and the Theory of Turnover," Journal of Political Economy, University of Chicago Press, vol. 87(5), pages 972-90, October. [Downloadable!] (restricted)
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  13. Joseph G. Altonji & James R. Spletzer, 1991. "Worker characteristics, job characteristics, and the receipt of on-the-job training," Industrial and Labor Relations Review, ILR Review, ILR School, Cornell University, vol. 45(1), pages 58-79, October.
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