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Is Employment Polarization Informative About Wage Inequality and Is Employment Really Polarizing?

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  • Jennifer Hunt
  • Ryan Nunn

Abstract

Equating a job with an individual rather than an occupation, we re-examine whether U.S. workers are increasingly concentrated in low and high-wage jobs relative to middle-wage jobs, a phenomenon known as employment polarization. By assigning workers in the CPS to real hourly wage bins with time-invariant thresholds and tracking over time the shares of workers in each, we do find a decline since 1973 in the share of workers earning middle wages. However, we find that a strong increase in the share of workers in the top bin is accompanied by a slight decline in the share in the bottom bin, inconsistent with employment polarization. Turning to occupation-based analysis, we show that the share of employment in low-wage occupations is trending up only from 2002-2012, and that the apparent earlier growth and therefore polarization found in the literature is an artefact of occupation code redefinitions. This new timing rules out the hypothesis that computerization and automation lie behind both rising wage inequality and occupation-based employment polarization in the United States.

Suggested Citation

  • Jennifer Hunt & Ryan Nunn, 2019. "Is Employment Polarization Informative About Wage Inequality and Is Employment Really Polarizing?," NBER Working Papers 26064, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:26064
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    References listed on IDEAS

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    1. 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.
    2. Barry T. Hirsch & David A. MacPherson, 2003. "Union Membership and Coverage Database from the Current Population Survey: Note," ILR Review, Cornell University, ILR School, vol. 56(2), pages 349-354, January.
    3. David A. Green & Benjamin M. Sand, 2015. "Has the Canadian labour market polarized?," Canadian Journal of Economics, Canadian Economics Association, vol. 48(2), pages 612-646, May.
    4. Shim, Myungkyu & Yang, Hee-Seung, 2016. "New stylized facts on occupational employment and their implications: Evidence from consistent employment data," Economic Modelling, Elsevier, vol. 59(C), pages 402-415.
    5. David H. Autor, 2015. "Why Are There Still So Many Jobs? The History and Future of Workplace Automation," Journal of Economic Perspectives, American Economic Association, vol. 29(3), pages 3-30, Summer.
    6. Emily C Murphy & Daniel Oesch, 2018. "Is Employment Polarisation Inevitable? Occupational Change in Ireland and Switzerland, 1970–2010," Work, Employment & Society, British Sociological Association, vol. 32(6), pages 1099-1117, December.
    7. Oesch, Daniel, 2013. "Occupational Change in Europe: How Technology and Education Transform the Job Structure," OUP Catalogue, Oxford University Press, number 9780199680962.
    8. David Card & John E. DiNardo, 2002. "Skill-Biased Technological Change and Rising Wage Inequality: Some Problems and Puzzles," Journal of Labor Economics, University of Chicago Press, vol. 20(4), pages 733-783, October.
    9. Maria E. Canon & Elise Marifian, 2013. "Job polarization leaves middle-skilled workers out in the cold," The Regional Economist, Federal Reserve Bank of St. Louis, issue Jan.
    10. Zsófia L. Bárány & Christian Siegel, 2018. "Job Polarization and Structural Change," American Economic Journal: Macroeconomics, American Economic Association, vol. 10(1), pages 57-89, January.
    11. Lefter, Alexandru & Sand, Benjamin M., 2011. "Job Polarization in the U.S.: A Reassessment of the Evidence from the 1980s and 1990s," Economics Working Paper Series 1103, University of St. Gallen, School of Economics and Political Science.
    12. Levy, Frank & Murnane, Richard J, 1992. "U.S. Earnings Levels and Earnings Inequality: A Review of Recent Trends and Proposed Explanations," Journal of Economic Literature, American Economic Association, vol. 30(3), pages 1333-1381, September.
    13. Oesch, Daniel & Rodriguez Menes, Jorge, 2010. "Upgrading or polarization? Occupational change in Britain, Germany, Spain and Switzerland, 1990-2008," MPRA Paper 21040, University Library of Munich, Germany.
    14. Fabio Cerina & Alessio Moro & Michelle Petersen Rendall, 2016. "The Role of Gender in Employment Polarization," Discussion Papers 1704, Centre for Macroeconomics (CFM), revised Jan 2017.
    15. Zsófia L. Bárány & Christian Siegel, 2018. "Job Polarization and Structural Change," American Economic Journal: Macroeconomics, American Economic Association, vol. 10(1), pages 57-89, January.
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    More about this item

    JEL classification:

    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
    • J62 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Job, Occupational and Intergenerational Mobility; Promotion

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