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Firm‐to‐Firm Trade: Imports, Exports, and the Labor Market

Jonathan Eaton1; Samuel Kortum2; Francis Kramarz3,4

1 Department of Economics, Pennsylvania State University · 2 Department of Economics, Yale University. · 3 Innovation Lab, Collège de France · 4 Department of Economics, Uppsala University

Econometrica 2026

Customs data reveal the heterogeneity and granularity of relationships among buyers and sellers, showing how more exports to a destination break down into more firms selling there and more buyers per exporter. We develop a quantitative general equilibrium model of firm‐to‐firm matching that builds on this insight to separate the roles of iceberg costs and matching frictions in gravity. In the cross section, we find matching frictions as important as iceberg costs in impeding trade, and more sensitive to distance. Because domestic and imported intermediates compete directly with labor in performing production tasks, our model also fits the heterogeneity of labor shares across French producers. Applying the framework to the 2004 expansion of the European Union, reduced iceberg costs and reduced matching frictions contributed equally to the increase in French exports to the new members. While workers benefited overall, those competing most directly with imports gained less, even losing in some countries entering the EU.

DOI
10.3982/ecta20506
Volume
94 (4)
Pages
1135-1170
Language
en
Export
BibTeX
Sources
crossref