Ivana Komunjer

Department of Economics
University of California, San Diego
9500 Gilman Drive
La Jolla, CA 92093-0508
Tel: 858 822-0667

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NBER Working Papers and Publications

August 2010What Goods Do Countries Trade? A Quantitative Exploration of Ricardo's Ideas
with Arnaud Costinot, Dave Donaldson: w16262
The Ricardian model predicts that countries should produce and export relatively more in industries in which they are relatively more productive. Though one of the most celebrated insights in the theory of international trade, this prediction has received virtually no attention in the empirical literature since the mid-sixties. The main reason behind this lack of popularity is the absence of clear theoretical foundations to guide the empirical analysis. Building on the seminal work of Eaton and Kortum (2002), the present paper offers such foundations and uses them to quantify the importance of Ricardian comparative advantage. Using trade and productivity data from 1997, we estimate that, ceteris paribus, the elasticity of bilateral exports with respect to observed productivity is 6.53. Fr...

Published: Arnaud Costinot & Dave Donaldson & Ivana Komunjer, 2012. "What Goods Do Countries Trade? A Quantitative Exploration of Ricardo's Ideas," Review of Economic Studies, Oxford University Press, vol. 79(2), pages 581-608. citation courtesy of

December 2007What Goods Do Countries Trade? New Ricardian Predictions
with Arnaud Costinot: w13691
Though one of the pillars of the theory of international trade, the extreme predictions of the Ricardian model have made it unsuitable for empirical purposes. A seminal contribution of Eaton and Kortum (2002) is to demonstrate that random productivity shocks are sufficient to make the Ricardian model empirically relevant. While successful at explaining trade volumes, their model remains silent with regards to one important question: What goods do countries trade? Our main contribution is to generalize their approach and provide an empirically meaningful answer to this question.
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