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Changes in Unemployment and Wage Inequality: An Alternative Theory and Some Evidence

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Author Info
Acemoglu, Daron

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Abstract

This paper offers an alternative theory for the increase in unemployment and wage inequality experienced in the United States over the past two decades. In my model firms decide the composition of jobs and then match with skilled and unskilled workers. The demand for skills is endogenous and an increase in the proportion of skilled workers or their productivity can change the nature of equilibrium such that firms start creating separate jobs for the skilled and the unskilled. Such a change increases skilled wages, reduces unskilled wages and increases the unemployment rate of both skilled and unskilled workers. Although skilled workers are better-off as a result of this change, total social surplus can decrease. A testable implication which distinguishes this theory from others is derived and some evidence in support of this implication is provided.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 1459.

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Date of creation: Sep 1996
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Handle: RePEc:cpr:ceprdp:1459

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Related research
Keywords: Job Structure Matching Search Unemployment Wage Inequality

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Find related papers by JEL classification:
E24 - Macroeconomics and Monetary Economics - - Macroeconomics: Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution
J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
J64 - Labor and Demographic Economics - - Mobility, Unemployment, and Vacancies - - - Unemployment: Models, Duration, Incidence, and Job Search

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  5. Kremer, M. & Maskin, E., 1995. "Segregation by Skill and the Rise in Inequality," Papers e-95-7, Stanford - Hoover Institution.
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  8. Acemoglu, D. & Shimer, R., 1997. "Efficient Wage Dispersion," Working papers 97-7, Massachusetts Institute of Technology (MIT), Department of Economics.
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  9. Lawrence F. Katz & Kevin M. Murphy, 1991. "Changes in Relative Wages, 1963-1987: Supply and Demand Factors," NBER Working Papers 3927, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  10. Topel, Robert H & Ward, Michael P, 1992. "Job Mobility and the Careers of Young Men," The Quarterly Journal of Economics, MIT Press, vol. 107(2), pages 439-79, May. [Downloadable!] (restricted)
    Other versions:
  11. Acemoglu, Daron, 1997. "Good Jobs versus Bad Jobs: Theory and Some Evidence," CEPR Discussion Papers 1588, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  12. Rubinstein, Ariel, 1982. "Perfect Equilibrium in a Bargaining Model," Econometrica, Econometric Society, vol. 50(1), pages 97-109, January. [Downloadable!] (restricted)
  13. Acemoglu, Daron, 1996. "A Microfoundation for Social Increasing Returns in Human Capital Accumulation," The Quarterly Journal of Economics, MIT Press, vol. 111(3), pages 779-804, August. [Downloadable!] (restricted)
  14. Burdett, Ken & Coles, Melvyn G, 1997. "Marriage and Class," The Quarterly Journal of Economics, MIT Press, vol. 112(1), pages 141-68, February.
  15. Acemoglu, Daron & Shimer, Robert, 2000. "Wage and Technology Dispersion," Review of Economic Studies, Blackwell Publishing, vol. 67(4), pages 585-607, October.
  16. Diamond, Peter A, 1982. "Aggregate Demand Management in Search Equilibrium," Journal of Political Economy, University of Chicago Press, vol. 90(5), pages 881-94, October. [Downloadable!] (restricted)
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  17. Sattinger, Michael, 1993. "Assignment Models of the Distribution of Earnings," Journal of Economic Literature, American Economic Association, vol. 31(2), pages 831-80, June. [Downloadable!] (restricted)
  18. Francesco Caselli, 1999. "Technological Revolutions," American Economic Review, American Economic Association, vol. 89(1), pages 78-102, March. [Downloadable!] (restricted)
  19. Peter Cappelli & Steffi L Wilk, 1997. "Understanding Selection Processes: Organization Determinants and Performance Outcomes," Working Papers 97-14, Center for Economic Studies, U.S. Census Bureau. [Downloadable!]
  20. Sicherman, Nachum, 1991. ""Overeducation" in the Labor Market," Journal of Labor Economics, University of Chicago Press, vol. 9(2), pages 101-22, April. [Downloadable!] (restricted)
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  21. Juhn, Chinhui & Murphy, Kevin M & Pierce, Brooks, 1993. "Wage Inequality and the Rise in Returns to Skill," Journal of Political Economy, University of Chicago Press, vol. 101(3), pages 410-42, June. [Downloadable!] (restricted)
  22. Jill Constantine & David Neumark, 1994. "Training and the Growth of Wage Inequality," NBER Working Papers 4729, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  23. Daron Acemoglu, 1998. "Why Do New Technologies Complement Skills? Directed Technical Change And Wage Inequality," The Quarterly Journal of Economics, MIT Press, vol. 113(4), pages 1055-1089, November. [Downloadable!] (restricted)
    Other versions:
  24. David H. Autor & Lawrence F. Katz & Alan B. Krueger, 1998. "Computing Inequality: Have Computers Changed The Labor Market?," The Quarterly Journal of Economics, MIT Press, vol. 113(4), pages 1169-1213, November. [Downloadable!] (restricted)
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  25. Peter Cappelli, 1996. "Technology and skill requirements: implications for establishment wage structures," New England Economic Review, Federal Reserve Bank of Boston, pages 139-156.
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