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Welfare Effects of Trade Liberalization with Intra-industry Reallocations: The Importance of Preferences and Market Failures

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  • Allan Sørensen

    ()
    (School of Economics and Management, Aarhus University, Denmark)

Abstract

This paper shows that the novel gains from trade liberalization driven by intra-industry reallocations (Melitz (2003)) are not robust to changes in the preference structure. In the Melitz (2003) setting the unambigousness of the welfare effect depends crucially on the assumption of traditional CES pref- erences, which ensures equivalence of the market equilibrium and the social planner solution. For other preferences this equivalence is broken and trade liberalization may reduce welfare by magnifying market failures. An exact condition for trade liberalization to reduce overall welfare is derived under the assumptions of generalized CES preferences and a specific distribution (Pareto) of firm heterogeneity.

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Bibliographic Info

Paper provided by School of Economics and Management, University of Aarhus in its series Economics Working Papers with number 2010-02.

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Length: 24
Date of creation: 14 Jan 2010
Date of revision:
Handle: RePEc:aah:aarhec:2010-02

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Web page: http://www.econ.au.dk/afn/

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Keywords: Heterogenous firms; monopolistic competition; trade liberalization; welfare;

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  13. Dixit, Avinash K & Stiglitz, Joseph E, 1975. "Monopolistic Competition and Optimum Product Diversity," The Warwick Economics Research Paper Series (TWERPS) 64, University of Warwick, Department of Economics.
  14. Corsetti, Giancarlo & Martin, Philippe & Pesenti, Paolo, 2007. "Productivity, terms of trade and the `home market effect'," Journal of International Economics, Elsevier, vol. 73(1), pages 99-127, September.
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