Trade and inequality: from theory to estimation

Helpman, Elhanan, Itskhoki, Oleg, Muendler, Marc-Andreas and Redding, Stephen J. (2012) Trade and inequality: from theory to estimation. CEP Discussion Papers (CEPDP1138). London School of Economics and Political Science. Centre for Economic Performance, London, UK.

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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, Itskhoki, and Redding (2010) and structurally estimate it with Brazilian data. We show that the estimated model fits the data well, both in terms of key moments as well as in terms of the overall distributions of wages and employment, and find that international trade is important for this fit. In the estimated model, reductions in trade costs have a sizeable effect on wage inequality.

Item Type:	Monograph (Discussion Paper)
Official URL:	https://cep.lse.ac.uk/_new/publications/discussion...
Additional Information:	© 2012 The Author(s)
Divisions:	LSE
Subjects:	H Social Sciences > HC Economic History and Conditions H Social Sciences > HB Economic Theory
JEL classification:	F - International Economics > F1 - Trade > F12 - Models of Trade with Imperfect Competition and Scale Economies F - International Economics > F1 - Trade > F16 - Trade and Labor Market Interactions E - Macroeconomics and Monetary Economics > E2 - Consumption, Saving, Production, Employment, and Investment > E24 - Macroeconomics: Employment; Unemployment; Wages; Intergenerational Income Distribution (includes wage indexation)
Date Deposited:	21 Feb 2024 11:18
Last Modified:	11 Dec 2024 19:53
URI:	http://eprints.lse.ac.uk/id/eprint/121938

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