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Review of Economic Studies Vol. 59 No. 3 1992

Does Unmeasured Ability Explain Inter-Industry Wage Differentials

Robert Gibbons1,2; Lawrence Katz3

1 Cornell University · 2 Johnson University · 3 Harvard University

Abstract

This paper provides empirical assessments of the two leading explanations of measured inter-industry wage differentials: (1) true wage differentials exist across industries, and (2) the measured differentials simply reflect unmeasured differences in workers' productive abilities. First, we summarize the existing evidence on the unmeasured-ability explanation. Second, we construct a simple model which shows that if matching is important then endogenous job-change decisions can create important self-selection biases even in first-differenced estimates of industry wage differentials. Third, we analyze a sample that approximates the experiment of exogenous job loss. We find that (i) the wage change experienced by a typical industry switcher closely resembles the difference in the relevant industry differentials estimated in a cross-section, and (ii) pre-displacement industry affiliation plays an important role in post-displacement wage determination.

DOI
10.2307/2297862
Volume
59
Issue
3
Pages
515
Sources
bibtex:phds-export.bib openalex crossref

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