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Review of Economic Studies Vol. 84 No. 1 2017

Trade and Inequality: From Theory to Estimation

Elhanan Helpman1,2; Oleg Itskhoki3; Marc-Andreas Muendler4; Stephen J. Redding3

1 Canadian Institute for Advanced Research · 2 Harvard University · 3 Princeton University · 4 University of California San Diego

Abstract

While neoclassical theory emphasizes the impact of trade on wage inequality between occupations and sectors, more recent theories of firm heterogeneity point to the impact of trade on wage dispersion within occupations and sectors. Using linked employer–employee data for Brazil, we show that much of overall wage inequality arises within sector–occupations and for workers with similar observable characteristics; this within component is driven by wage dispersion between firms; and wage dispersion between firms is related to firm employment size and trade participation. We then extend the heterogenous-firm model of trade and inequality from Helpman et al. (2010) and estimate it with Brazilian data. We show that the estimated model provides a close approximation to the observed distribution of wages and employment. We use the estimated model to undertake counterfactuals, in which we find sizable effects of trade on wage inequality.

DOI
10.1093/restud/rdw025
Volume
84
Issue
1
Pages
357-405
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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