NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Firms, Contracts, and Trade Structure

Pol Antràs

NBER Working Paper No. 9740
Issued in June 2003
NBER Program(s):   ITI

Roughly one-third of world trade is intrafirm trade. This paper starts by unveiling two systematic patterns in the volume of intrafirm trade. In a panel of industries, the share of intrafirm imports in total U.S. imports is significantly higher, the higher the capital intensity of the exporting industry. In a cross-section of countries U.S. imports is significantly higher, the higher the capital-labor ratio of the exporting country. I then show that these patterns can be rationalized in a theoretical framework that combines a Grossman-Hart-Moore view of the firm with a Helpman-Krugman view of international trade. In particular an incomplete-contracting, property-rights model of the boundaries of the firm, which I then incorporate into a standard trade model with imperfect competition and product differentiation. The model pins down the boundaries of multinational firms as well as the international location of production, and it is shown to predict the patterns of intrafirm trade identified above. Econometric evidence reveals that the model is consistent with other qualitative and quantitative features of the data.

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Document Object Identifier (DOI): 10.3386/w9740

Published: Pol Antràs, 2003. "Firms, Contracts, And Trade Structure," The Quarterly Journal of Economics, MIT Press, vol. 118(4), pages 1375-1418, November. citation courtesy of

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