Multiproduct Firms and Product Scope Adjustment in Trade

53 Pages Posted: 19 Oct 2014 Last revised: 18 Mar 2016

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John Lopresti

College of William and Mary - Department of Economics

Date Written: December 1, 2015

Abstract

A recent theoretical literature has emphasized the importance of multiproduct firms in trade. However, models within this literature have reached contradictory conclusions regarding the product-level response of firms to changes in trade costs. This paper attempts to resolve these contradictions by employing Bayesian techniques to estimate the product portfolio response throughout the distribution of U.S. firms following the Canada-US Free Trade Agreement of 1989. I find evidence of a differential response among firms that are heterogeneous in terms of their involvement in foreign markets. Firms with less than 10-20 percent of total sales accounted for by foreign markets reduced product diversification as trade costs fell, while more foreign-oriented firms increased diversification.

Keywords: International Trade; Multiproduct Firms

JEL Classification: F1

Suggested Citation

Lopresti, John, Multiproduct Firms and Product Scope Adjustment in Trade (December 1, 2015). Available at SSRN: https://ssrn.com/abstract=2511496 or http://dx.doi.org/10.2139/ssrn.2511496

John Lopresti (Contact Author)

College of William and Mary - Department of Economics ( email )

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