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Market Size, Trade, and Productivity

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  • Marc J. Melitz

    (Harvard University, NBER and CEPR)

  • Gianmarco I.P. Ottaviano

    (University of Bologna, FEEM and CEPR)

Abstract

We develop a monopolistically competitive model of trade with firm heterogeneity - in terms of productivity differences - and endogenous differences in the ‘toughness’ of competition across markets - in terms of the number and average productivity of competing firms. We analyze how these features vary across markets of different size that are not perfectly integrated through trade; we then study the effects of different trade liberalization policies. In our model, market size and trade affect the toughness of competition, which then feeds back into the selection of heterogeneous producers and exporters in that market. Aggregate productivity and average markups thus respond to both the size of a market and the extent of its integration through trade (larger, more integrated markets exhibit higher productivity and lower markups). Our model remains highly tractable, even when extended to a general framework with multiple asymmetric countries integrated to different extents through asymmetric trade costs. We believe this provides a useful modeling framework that is particularly well suited to the analysis of trade and regional integration policy scenarios in an environment with heterogeneous firms and endogenous markups.

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Bibliographic Info

Paper provided by Centro Studi Luca d\'Agliano, University of Milano in its series Development Working Papers with number 201.

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Date of creation: 15 Jun 2005
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Handle: RePEc:csl:devewp:201

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Keywords: market structure; market size; productivity heterogeneity; endogenous markups; trade liberalization;

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References

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  1. Sofronis Clerides & Saul Lach & James Tybout, 1996. "Is "learning-by-exporting" important? Micro-dynamic evidence from Colombia, Mexico and Morocco," Finance and Economics Discussion Series 96-30, Board of Governors of the Federal Reserve System (U.S.).
  2. Gianmarco Ottaviano & Takatoshi Tabuchi & Jacques-FranÁois Thisse, 2002. "Agglomeration and Trade Revisited," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 43(2), pages 409-436, May.
  3. repec:rus:hseeco:122439 is not listed on IDEAS
  4. Massimo Del Gatto & Giordano Mion & Gianmarco I.P. Ottaviano, 2006. "Trade Integration, Firm Selection and the Costs of Non-Europe," Development Working Papers 218, Centro Studi Luca d\'Agliano, University of Milano.
  5. Combes, Pierre-Philippe & Duranton, Gilles & Gobillon, Laurent & Puga, Diego & Roux, Sébastien, 2009. "The productivity advantages of large cities: Distinguishing agglomeration from firm selection," CEPR Discussion Papers 7191, C.E.P.R. Discussion Papers.
  6. Krugman, Paul R., 1979. "Increasing returns, monopolistic competition, and international trade," Journal of International Economics, Elsevier, vol. 9(4), pages 469-479, November.
  7. Jeffrey R. Campbell & Hugo A. Hopenhayn, 2002. "Market Size Matters," NBER Working Papers 9113, National Bureau of Economic Research, Inc.
  8. Brander, James & Krugman, Paul, 1983. "A 'reciprocal dumping' model of international trade," Journal of International Economics, Elsevier, vol. 15(3-4), pages 313-321, November.
  9. Horstmann, Ignatius J. & Markusen, James R., 1986. "Up the average cost curve: Inefficient entry and the new protectionism," Journal of International Economics, Elsevier, vol. 20(3-4), pages 225-247, May.
  10. Elhanan Helpman & Marc Melitz & Yona Rubinstein, 2006. "Trading Partners and Trading Volumes," DEGIT Conference Papers c011_022, DEGIT, Dynamics, Economic Growth, and International Trade.
  11. Venables, Anthony J., 1985. "Trade and trade policy with imperfect competition: The case of identical products and free entry," Journal of International Economics, Elsevier, vol. 19(1-2), pages 1-19, August.
  12. Chad Syverson, 2004. "Market Structure and Productivity: A Concrete Example," Journal of Political Economy, University of Chicago Press, vol. 112(6), pages 1181-1222, December.
  13. Feenstra, Robert & Markusen, James R. & Rose, Andrew K, 1998. "Understanding the Home Market Effect and the Gravity Equation: The Role of Differentiating Goods," CEPR Discussion Papers 2035, C.E.P.R. Discussion Papers.
  14. Rubinstein, Yona & Helpman, Elhanan & Melitz, Marc, 2008. "Estimating Trade Flows: Trading Partners and Trading Volumes," Scholarly Articles 3228230, Harvard University Department of Economics.
  15. Aw, Bee Yan & Chung, Sukkyun & Roberts, Mark J, 2000. "Productivity and Turnover in the Export Market: Micro-level Evidence from the Republic of Korea and Taiwan (China)," World Bank Economic Review, World Bank Group, vol. 14(1), pages 65-90, January.
  16. Nina Pavcnik, 2000. "Trade Liberalization, Exit, and Productivity Improvements: Evidence from Chilean Plants," NBER Working Papers 7852, National Bureau of Economic Research, Inc.
  17. Bernard, A., 1997. "Exceptional Exporter Performance: Cause, Effect, or Both?," Working papers 97-21, Massachusetts Institute of Technology (MIT), Department of Economics.
  18. Bernard, Andrew B. & Jensen, J. Bradford & Schott, Peter K., 2006. "Trade costs, firms and productivity," Journal of Monetary Economics, Elsevier, vol. 53(5), pages 917-937, July.
  19. Melitz, Marc J, 2002. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," CEPR Discussion Papers 3381, C.E.P.R. Discussion Papers.
  20. Marcus Asplund & Volker Nocke, 2003. "Firm Turnover in Imperfectly Competitive Markets," PIER Working Paper Archive 03-010, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania.
  21. Marcus Asplund & Volker Nocke, 2006. "Firm Turnover in Imperfectly Competitive Markets -super-1," Review of Economic Studies, Oxford University Press, vol. 73(2), pages 295-327.
  22. Venables, Anthony J, 1987. "Trade and Trade Policy with Differentiated Products: A Chamberlinian-Ricardian Model," Economic Journal, Royal Economic Society, vol. 97(387), pages 700-717, September.
  23. Thomas J. Holmes & John J. Stevens, 2002. "Geographic concentration and establishment size: analysis in an alternative economic geography model," Finance and Economics Discussion Series 2002-17, Board of Governors of the Federal Reserve System (U.S.).
  24. Markusen, James R., 1981. "Trade and the gains from trade with imperfect competition," Journal of International Economics, Elsevier, vol. 11(4), pages 531-551, November.
  25. Weinstein, David E., 1992. "Competition and unilateral dumping," Journal of International Economics, Elsevier, vol. 32(3-4), pages 379-388, May.
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