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Estimating Trade Flows: Trading Partners and Trading Volumes

  • Elhanan Helpman
  • Marc Melitz
  • Yona Rubinstein

We develop a simple model of international trade with heterogeneous firms that is consistent with a number of stylized features of the data. In particular, the model predicts positive as well as zero trade flows across pairs of countries, and it allows the number of exporting firms to vary across destination countries. As a result, the impact of trade frictions on trade flows can be decomposed into the intensive and extensive margins, where the former refers to the trade volume per exporter and the latter refers to the number of exporters. This model yields a generalized gravity equation that accounts for the self-selection of firms into export markets and their impact on trade volumes. We then develop a two-stage estimation procedure that uses a selection equation into trade partners in the first stage and a trade flow equation in the second. We implement this procedure parametrically, semi-parametrically, and non-parametrically, showing that in all three cases the estimated effects of trade frictions are similar. Importantly, our method provides estimates of the intensive and extensive margins of trade. We show that traditional estimates are biased, and that most of the bias is not due to selection but rather due to the omission of the extensive margin. Moreover, the effect of the number of exporting firms varies across country pairs according to their characteristics. This variation is large, and particularly so for trade between developed and less developed countries and between pairs of less developed countries.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 12927.

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Date of creation: Feb 2007
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Publication status: published as Elhanan Helpman & Marc Melitz & Yona Rubinstein, 2008. "Estimating Trade Flows: Trading Partners and Trading Volumes," The Quarterly Journal of Economics, MIT Press, vol. 123(2), pages 441-487, 05.
Handle: RePEc:nbr:nberwo:12927
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  1. repec:rus:hseeco:123558 is not listed on IDEAS
  2. James E. Anderson & Eric van Wincoop, 2003. "Gravity with Gravitas: A Solution to the Border Puzzle," American Economic Review, American Economic Association, vol. 93(1), pages 170-192, March.
  3. Andrew B. Bernard & Jonathan Eaton & J. Bradford Jensen & Samuel Kortum, 2000. "Plants and Productivity in International Trade," Boston University - Institute for Economic Development 105, Boston University, Institute for Economic Development.
  4. Shang-Jin Wei & Arvind Subramanian, 2003. "The WTO Promotes Trade, Strongly But Unevenly," IMF Working Papers 03/185, International Monetary Fund.
  5. Jonathan Eaton & Samuel Kortum & Francis Kramarz, 2004. "Dissecting Trade: Firms, Industries, and Export Destinations," NBER Working Papers 10344, National Bureau of Economic Research, Inc.
  6. Jeffrey A. Frankel & David Romer, 1996. "Trade and Growth: An Empirical Investigation," NBER Working Papers 5476, National Bureau of Economic Research, Inc.
  7. Torsten Persson & Guido Tabellini, 2005. "The Economic Effects of Constitutions," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262661926, June.
  8. Simeon Djankov & Rafael La Porta & Florencio LopezdeSilanes & Andrei Shleifer, 2000. "The Regulation of Entry," NBER Working Papers 7892, National Bureau of Economic Research, Inc.
  9. Shang-Jin Wei, 1996. "Intra-National versus International Trade: How Stubborn are Nations in Global Integration?," NBER Working Papers 5531, National Bureau of Economic Research, Inc.
  10. Jonathan Eaton & Samuel Kortum, 2002. "Technology, Geography, and Trade," Econometrica, Econometric Society, vol. 70(5), pages 1741-1779, September.
  11. Anderson, James E, 1979. "A Theoretical Foundation for the Gravity Equation," American Economic Review, American Economic Association, vol. 69(1), pages 106-16, March.
  12. David Hummels & Peter J. Klenow, 2005. "The Variety and Quality of a Nation's Exports," American Economic Review, American Economic Association, vol. 95(3), pages 704-723, June.
  13. James E. Anderson & Eric van Wincoop, 2004. "Trade Costs," Journal of Economic Literature, American Economic Association, vol. 42(3), pages 691-751, September.
  14. Joao Santos Silva & Silvana Tenreyro, 2005. "The Log of Gravity," CEP Discussion Papers dp0701, Centre for Economic Performance, LSE.
  15. David H. Romer & Jeffrey A. Frankel, 1999. "Does Trade Cause Growth?," American Economic Review, American Economic Association, vol. 89(3), pages 379-399, June.
  16. Rose, Andrew K, 2002. "Do We Really Know that the WTO Increases Trade?," CEPR Discussion Papers 3538, C.E.P.R. Discussion Papers.
  17. Marc J. Melitz, 2003. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," Econometrica, Econometric Society, vol. 71(6), pages 1695-1725, November.
  18. Robert E. Hall & Charles I. Jones, 1999. "Why Do Some Countries Produce So Much More Output per Worker than Others?," NBER Working Papers 6564, National Bureau of Economic Research, Inc.
  19. Jon Haveman & David Hummels, 2004. "Alternative hypotheses and the volume of trade: the gravity equation and the extent of specialization," Canadian Journal of Economics, Canadian Economics Association, vol. 37(1), pages 199-218, February.
  20. Andrew B. Bernard & J. Bradford Jensen & Peter K. Schott, 2005. "Importers, Exporters, and Multinationals: A Portrait of Firms in the U.S. that Trade Goods," Working Paper Series WP05-10, Peterson Institute for International Economics.
  21. Feenstra, Robert C, 2002. "Border Effects and the Gravity Equation: Consistent Methods for Estimation," Scottish Journal of Political Economy, Scottish Economic Society, vol. 49(5), pages 491-506, December.
  22. Robert Barro & Silvana Tenreyro, 2007. "Economic Effects Of Currency Unions," Economic Inquiry, Western Economic Association International, vol. 45(1), pages 1-23, 01.
  23. Gabriel J. Felbermayr & Wilhelm Kohler, 2006. "Exploring the Intensive and Extensive Margins of World Trade," Review of World Economics (Weltwirtschaftliches Archiv), Springer, vol. 142(4), pages 642-674, December.
  24. Andrew K. Rose, 1999. "One Money, One Market: Estimating the Effect of Common Currencies on Trade," NBER Working Papers 7432, National Bureau of Economic Research, Inc.
  25. Davis, Donald R. & Weinstein, David E., 2003. "Market access, economic geography and comparative advantage: an empirical test," Journal of International Economics, Elsevier, vol. 59(1), pages 1-23, January.
  26. Timothy J. Kehoe & Kim J. Ruhl, 2006. "How Important is the New Goods Margin in International Trade?," 2006 Meeting Papers 733, Society for Economic Dynamics.
  27. Jeffrey D. Sachs & Andrew Warner, 1995. "Economic Reform and the Process of Global Integration," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 26(1, 25th A), pages 1-118.
  28. Elhanan Helpman & Marc Melitz & Yona Rubinstein, 2008. "Estimating Trade Flows: Trading Partners and Trading Volumes," The Quarterly Journal of Economics, MIT Press, vol. 123(2), pages 441-487, 05.
  29. Carolyn L. Evans, 2003. "The Economic Significance of National Border Effects," American Economic Review, American Economic Association, vol. 93(4), pages 1291-1312, September.
  30. Helpman, Elhanan, 1987. "Imperfect competition and international trade: Evidence from fourteen industrial countries," Journal of the Japanese and International Economies, Elsevier, vol. 1(1), pages 62-81, March.
  31. repec:rus:hseeco:122439 is not listed on IDEAS
  32. McCallum, John, 1995. "National Borders Matter: Canada-U.S. Regional Trade Patterns," American Economic Review, American Economic Association, vol. 85(3), pages 615-23, June.
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