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Real Wage Inequality

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  • Enrico Moretti

Abstract

A large literature has documented a significant increase in the difference between the wage of college graduates and high school graduates over the past 30 years. I show that from 1980 to 2000, college graduates have experienced relatively larger increases in cost of living, because they have increasingly concentrated in metropolitan areas that are characterized by a high cost of housing. When I deflate nominal wages using a location-specific CPI, I find that the difference between the wage of college graduates and high school graduates is lower in real terms than in nominal terms and has grown less. At least 22% of the documented increase in college premium is accounted for by spatial differences in the cost of living. The implications of this finding for changes in well-being inequality depend on why college graduates sort into expensive cities. Using a simple general equilibrium model of the labor and housing markets, I consider two alternative explanations. First, it is possible that the relative supply of college graduates increases in expensive cities because college graduates are increasingly attracted by amenities located in those cities. In this case, the higher cost of housing reflects consumption of desirable local amenities, and there may still be a significant increase in well-being inequality even if the increase in real wage inequality is limited. Alternatively, it is possible that the relative demand for college graduates increases in expensive cities due to shifts in the relative productivity of skilled labor. In this case, the relative increase in skilled workers' standard of living is offset by the higher cost of living. The evidence indicates that changes in the geographical location of different skill groups are mostly driven by changes in their relative demand. I conclude that the increase in well-being disparities between 1980 and 2000 is smaller than the increase in nominal wage disparities that has been the focus of the previous literature.

Suggested Citation

  • Enrico Moretti, 2008. "Real Wage Inequality," NBER Working Papers 14370, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:14370
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    1. Berry, Christopher R. & Glaeser, Edward L., 2005. "Divergence of Human Capital Levels across Cities," Working Paper Series rwp05-057, Harvard University, John F. Kennedy School of Government.
    2. Lawrence F. Katz & Kevin M. Murphy, 1992. "Changes in Relative Wages, 1963–1987: Supply and Demand Factors," The Quarterly Journal of Economics, Oxford University Press, vol. 107(1), pages 35-78.
    3. David Card & Thomas Lemieux, 2001. "Can Falling Supply Explain the Rising Return to College for Younger Men? A Cohort-Based Analysis," The Quarterly Journal of Economics, Oxford University Press, vol. 116(2), pages 705-746.
    4. Thomas Lemieux, 2006. "Postsecondary Education and Increasing Wage Inequality," American Economic Review, American Economic Association, vol. 96(2), pages 195-199, May.
    5. Roback, Jennifer, 1982. "Wages, Rents, and the Quality of Life," Journal of Political Economy, University of Chicago Press, vol. 90(6), pages 1257-1278, December.
    6. Moretti, Enrico, 2004. "Estimating the social return to higher education: evidence from longitudinal and repeated cross-sectional data," Journal of Econometrics, Elsevier, vol. 121(1-2), pages 175-212.
    7. David H. Autor & Frank Levy & Richard J. Murnane, 2003. "The skill content of recent technological change: an empirical exploration," Proceedings, Federal Reserve Bank of San Francisco, issue Nov.
    8. Roback, Jennifer, 1988. "Wages, Rents, and Amenities: Differences among Workers and Regions," Economic Inquiry, Western Economic Association International, vol. 26(1), pages 23-41, January.
    9. Edward L. Glaeser & Joseph Gyourko, 2005. "Urban Decline and Durable Housing," Journal of Political Economy, University of Chicago Press, vol. 113(2), pages 345-375, April.
    10. Ian Dew-Becker & Robert J. Gordon, 2005. "Where Did Productivity Growth Go? Inflation Dynamics and the Distribution of Income," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 36(2), pages 67-150.
    11. Claudia Goldin & Lawrence F. Katz, 1999. "The Returns to Skill in the United States across the Twentieth Century," NBER Working Papers 7126, National Bureau of Economic Research, Inc.
    12. Claudia Goldin & Lawrence F. Katz, 2007. "Long-Run Changes in the Wage Structure: Narrowing, Widening, Polarizing," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 38(2), pages 135-168.
    13. Katz, Lawrence F. & Autor, David H., 1999. "Changes in the wage structure and earnings inequality," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 3, chapter 26, pages 1463-1555, Elsevier.
    14. Douglas J. Krupka, 2009. "Location‐Specific Human Capital, Location Choice And Amenity Demand," Journal of Regional Science, Wiley Blackwell, vol. 49(5), pages 833-854, December.
    15. Edward L. Glaeser & Joseph Gyourko & Raven E. Saks, 2005. "Why Have Housing Prices Gone Up?," American Economic Review, American Economic Association, vol. 95(2), pages 329-333, May.
    16. Joseph Gyourko & Christopher Mayer & Todd Sinai, 2013. "Superstar Cities," American Economic Journal: Economic Policy, American Economic Association, vol. 5(4), pages 167-199, November.
    17. Robert J. Gordon & Ian Dew-Becker, 2008. "Controversies about the Rise of American Inequality: A Survey," NBER Working Papers 13982, National Bureau of Economic Research, Inc.
    18. Edward L. Glaeser & Kristina Tobio, 2007. "The Rise of the Sunbelt," NBER Working Papers 13071, National Bureau of Economic Research, Inc.
    19. David Albouy, 2009. "The Unequal Geographic Burden of Federal Taxation," Journal of Political Economy, University of Chicago Press, vol. 117(4), pages 635-667, August.
    20. Enrico Moretti, 2004. "Workers' Education, Spillovers, and Productivity: Evidence from Plant-Level Production Functions," American Economic Review, American Economic Association, vol. 94(3), pages 656-690, June.
    21. James Heckman & Lance Lockner & Christopher Taber, 1999. "Human capital formation and general equilibrium treatment effects: a study of tax and tuition policy," Fiscal Studies, Institute for Fiscal Studies, vol. 20(1), pages 25-40, March.
    22. Thomas Lemieux, 2006. "Increasing Residual Wage Inequality: Composition Effects, Noisy Data, or Rising Demand for Skill?," American Economic Review, American Economic Association, vol. 96(3), pages 461-498, June.
    23. Douglas J. Krupka & Kwame N. Donaldson, 2013. "Wages, Rents, And Heterogeneous Moving Costs," Economic Inquiry, Western Economic Association International, vol. 51(1), pages 844-864, January.
    24. Jeff Grogger & Eric Eide, 1995. "Changes in College Skills and the Rise in the College Wage Premium," Journal of Human Resources, University of Wisconsin Press, vol. 30(2), pages 280-310.
    25. Hamermesh, Daniel S, 1992. "A General Model of Dynamic Labor Demand," The Review of Economics and Statistics, MIT Press, vol. 74(4), pages 733-737, November.
    26. Derek Neal, 2004. "The Measured Black-White Wage Gap among Women Is Too Small," Journal of Political Economy, University of Chicago Press, vol. 112(S1), pages 1-28, February.
    27. Neal, Derek & Rosen, Sherwin, 2000. "Theories of the distribution of earnings," Handbook of Income Distribution, in: A.B. Atkinson & F. Bourguignon (ed.), Handbook of Income Distribution, edition 1, volume 1, chapter 7, pages 379-427, Elsevier.
    28. James Heckman & Lance Lochner & Christopher Taber, 1998. "Explaining Rising Wage Inequality: Explanations With A Dynamic General Equilibrium Model of Labor Earnings With Heterogeneous Agents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 1(1), pages 1-58, January.
    29. Thomas Lemieux, 2008. "The changing nature of wage inequality," Journal of Population Economics, Springer;European Society for Population Economics, vol. 21(1), pages 21-48, January.
    30. Michael Greenstone & Richard Hornbeck & Enrico Moretti, 2008. "Identifying Agglomeration Spillovers: Evidence from Million Dollar Plants," Working Paper series 36_08, Rimini Centre for Economic Analysis.
    31. Gordon B. Dahl, 2002. "Mobility and the Return to Education: Testing a Roy Model with Multiple Markets," Econometrica, Econometric Society, vol. 70(6), pages 2367-2420, November.
    32. Robert H. Topel, 1997. "Factor Proportions and Relative Wages: The Supply-Side Determinants of Wage Inequality," Journal of Economic Perspectives, American Economic Association, vol. 11(2), pages 55-74, Spring.
    33. Christopher R. Berry & Edward L. Glaeser, 2005. "The divergence of human capital levels across cities," Papers in Regional Science, Wiley Blackwell, vol. 84(3), pages 407-444, August.
    34. David H. Autor & Lawrence F. Katz & Alan B. Krueger, 1998. "Computing Inequality: Have Computers Changed the Labor Market?," The Quarterly Journal of Economics, Oxford University Press, vol. 113(4), pages 1169-1213.
    35. Yuichi Kitamura & William Johnson & Derek Neal, 2000. "Evaluating a Simple Method for Estimating Black-White Gaps in Median Wages," American Economic Review, American Economic Association, vol. 90(2), pages 339-343, May.
    36. repec:rim:rimwps:36-08 is not listed on IDEAS
    37. Bound, John & Holzer, Harry J, 2000. "Demand Shifts, Population Adjustments, and Labor Market Outcomes during the 1980s," Journal of Labor Economics, University of Chicago Press, vol. 18(1), pages 20-54, January.
    38. Christopher R. Berry & Edward L. Glaeser, 2005. "The Divergence of Human Capital Levels Across Cities," NBER Working Papers 11617, National Bureau of Economic Research, Inc.
    39. Bound, John & Johnson, George, 1992. "Changes in the Structure of Wages in the 1980's: An Evaluation of Alternative Explanations," American Economic Review, American Economic Association, vol. 82(3), pages 371-392, June.
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    JEL classification:

    • J01 - Labor and Demographic Economics - - General - - - Labor Economics: General
    • J2 - Labor and Demographic Economics - - Demand and Supply of Labor
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General

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