Bilateral Trade, Relative Prices, and Trade Costs

The University of Iowa and Michael Waugh

No 781, 2008 Meeting Papers from Society for Economic Dynamics

Abstract: Poor countries import a larger volume of goods from rich countries, than rich countries import from poor countries. Furthermore, there is little difference in comparable price indices for tradable goods between rich and poor countries. Standard empirical implementation of structural gravity models with distance and other symmetric relationships for trade costs cannot account for both of these facts. To account for these facts, I argue that trade costs must be systematically asymmetric with poor countries facing higher costs to export relative to rich countries. I then demonstrate that asymmetry is quantitatively important accounting for at least a third of the variation in bilateral trade --- on par or more important than distance and other symmetric relationships. Given these observations, I propose a trade cost function and demonstrate how it can reconcile the discrepancy between the results of Eaton and Kortum (2001) and Hsieh and Klenow's (2007) observations regarding cross-country differences in the price of investment goods.

Date: 2008
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