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Trade Flow Dynamics with Heterogeneous Firms

  • Fabio Ghironi
  • Marc J. Melitz

We use a two-country, stochastic, general equilibrium model of international trade and macroeconomic dynamics with monopolistic competition and heterogeneous firms to explore the role of entry in the domestic economy and the extensive margin of international trade in the dynamics of U.S. trade flows over the business cycle. We show that the model can reproduce the evidence on the cyclicality of U.S. trade and important features of the evidence on the extensive margins of domestic entry and international trade. Entry in the domestic economy and the implied differences in the timing of export and import expansions in response to favorable productivity shocks provide the key mechanism for the model's ability to explain this range of stylized facts.

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Article provided by American Economic Association in its journal American Economic Review.

Volume (Year): 97 (2007)
Issue (Month): 2 (May)
Pages: 356-361

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Handle: RePEc:aea:aecrev:v:97:y:2007:i:2:p:356-361
Note: DOI: 10.1257/aer.97.2.356
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  1. Timothy J. Kehoe & Kim J. Ruhl, 2013. "How Important Is the New Goods Margin in International Trade?," Journal of Political Economy, University of Chicago Press, vol. 121(2), pages 358 - 392.
  2. Satyajit Chatterjee & Russell W. Cooper, 1993. "Entry and exit, product variety and the business cycle," Working Papers 93-30, Federal Reserve Bank of Philadelphia.
  3. Robert C. Feenstra & John Romalis & Peter K. Schott, 2002. "U.S. Imports, Exports, and Tariff Data, 1989-2001," NBER Working Papers 9387, National Bureau of Economic Research, Inc.
  4. Devereux, Michael B. & Head, Allen C. & Lapham, Beverly J., 1996. "Aggregate fluctuations with increasing returns to specialization and scale," Journal of Economic Dynamics and Control, Elsevier, vol. 20(4), pages 627-656, April.
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