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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 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 National Bureau of Economic Research, Inc in its series NBER Working Papers with number 6279.

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Date of creation: Nov 1997
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Handle: RePEc:nbr:nberwo:6279

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Find related papers by JEL classification:
D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials

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  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. 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)
  4. 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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  5. 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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  6. 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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  7. Murnane, Richard J & Willett, John B & Levy, Frank, 1995. "The Growing Importance of Cognitive Skills in Wage Determination," The Review of Economics and Statistics, MIT Press, vol. 77(2), pages 251-66, May. [Downloadable!] (restricted)
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  8. 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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  9. 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)
  10. 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)
  11. Edward P. Lazear, 1984. "Raids and Offermatching," NBER Working Papers 1419, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  12. 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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  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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