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American Economic Review: Vol. 103 No. 5 (August 2013)

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The Growth of Low-Skill Service Jobs and the Polarization of the US Labor Market

Article Citation

Autor, David H., and David Dorn. 2013. "The Growth of Low-Skill Service Jobs and the Polarization of the US Labor Market." American Economic Review, 103(5): 1553-97.

DOI: 10.1257/aer.103.5.1553

Abstract

We offer a unified analysis of the growth of low-skill service occupations between 1980 and 2005 and the concurrent polarization of US employment and wages. We hypothesize that polarization stems from the interaction between consumer preferences, which favor variety over specialization, and the falling cost of automating routine, codifiable job tasks. Applying a spatial equilibrium model, we corroborate four implications of this hypothesis. Local labor markets that specialized in routine tasks differentially adopted information technology, reallocated low-skill labor into service occupations (employment polarization), experienced earnings growth at the tails of the distribution (wage polarization), and received inflows of skilled labor.

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Authors

Autor, David H. (MIT)
Dorn, David (CEMFI, Madrid)

JEL Classifications

J24: Human Capital; Skills; Occupational Choice; Labor Productivity
J31: Wage Level and Structure; Wage Differentials
R23: Urban, Rural, Regional, Real Estate, and Transportation Economics: Regional Migration; Regional Labor Markets; Population; Neighborhood Characteristics


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