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Journal Article Unobserved Ability, Efficiency Wages, and Interindustry Wage Differentials Get access McKinley Blackburn, McKinley Blackburn University of South Carolina Search for other works by this author on: Oxford Academic Google Scholar David Neumark David Neumark University of Pennsylvania and National Bureau of Economic Research Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Economics, Volume 107, Issue 4, November 1992, Pages 1421–1436, https://doi.org/10.2307/2118394 Published: 01 November 1992
Blackburn et al. (Sun,) studied this question.
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