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Gravity without Apology: The Science of Elasticities, Distance, and Trade

J. Peter Neary (), Céline Carrère and Monika Mrázová

No 904, Economics Series Working Papers from University of Oxford, Department of Economics

Abstract: Gravity as both fact and theory is one of the great success stories of recent research on international trade, and has featured prominently in the policy debate over Brexit. We first review the facts, noting the overwhelming evidence that trade tends to fall with distance. We then introduce some expository tools for understanding CES theories of gravity as a simple general-equilibrium system. Next, we point out some anomalies with the theory: mounting evidence against constant trade elasticities, and implausible predictions for bilateral trade balances. Finally, we sketch an approach based on subconvex gravity as a promising direction to resolving them.

Keywords: Bilateral Trade Balances; Brexit; Elasticity of Trade to Distance; Quantile Regression; Structural Gravity and Trade; Subconvex Demands (search for similar items in EconPapers)
JEL-codes: F17 F14 F10 (search for similar items in EconPapers)
Date: 2020-03-27
New Economics Papers: this item is included in nep-ore
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Journal Article: Gravity Without Apology: the Science of Elasticities, Distance and Trade (2020) Downloads
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