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Measuring the Gains from Trade under Monopolistic Competition

  • Robert C. Feenstra

Three sources of gains from trade under monopolistic competition are: (i) new import varieties available to consumers; (ii) enhanced efficiency as more productive firms begin exporting and less productive firms exit; (iii) reduced markups charged by firms due to import competition. The first source of gains can be measured as new goods in a CES utility function for consumers. We argue that the second source is formally analogous to the producer gain from new goods, with a constant-elasticity transformation curve for the economy. We suggest that the third source of gain can be measured using a translog expenditure function for consumers, which in contrast to the CES case, allows for finite reservation prices for new goods and endogenous markups.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 15593.

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Date of creation: Dec 2009
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Publication status: published as Robert C. Feenstra, 2010. "Measuring the gains from trade under monopolistic competition," Canadian Journal of Economics, Canadian Economics Association, vol. 43(1), pages 1-28, February.
Handle: RePEc:nbr:nberwo:15593
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  1. James R. Melvin, 1969. "Increasing Returns to Scale as a Determinant of Trade," Canadian Journal of Economics, Canadian Economics Association, vol. 2(3), pages 389-402, August.
  2. Head, Keith & Ries, John, 1999. "Rationalization effects of tariff reductions," Journal of International Economics, Elsevier, vol. 47(2), pages 295-320, April.
  3. Feenstra, Robert & Kee, Hiau Looi, 2008. "Export variety and country productivity: Estimating the monopolistic competition model with endogenous productivity," Journal of International Economics, Elsevier, vol. 74(2), pages 500-518, March.
  4. Paul R. Bergin & Robert C. Feenstra, 2009. "Pass-Through of Exchange Rates and Competition between Floaters and Fixers," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 41(s1), pages 35-70, 02.
  5. David Weinstein & Christian Broda, 2004. "Globalization and the Gains from Variety," Econometric Society 2004 North American Summer Meetings 508, Econometric Society.
  6. Julian di Giovanni & Andrei A. Levchenko, 2009. "Firm Entry, Trade, and Welfare in Zipf's World," Working Papers 591, Research Seminar in International Economics, University of Michigan.
  7. Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June.
  8. Krugman, Paul R., 1979. "Increasing returns, monopolistic competition, and international trade," Journal of International Economics, Elsevier, vol. 9(4), pages 469-479, November.
  9. Richard E. Baldwin & Rikard Forslid, 2010. "Trade Liberalization with Heterogeneous Firms," Review of Development Economics, Wiley Blackwell, vol. 14(2), pages 161-176, 05.
  10. Diewert, W. E., 1976. "Exact and superlative index numbers," Journal of Econometrics, Elsevier, vol. 4(2), pages 115-145, May.
  11. Spence, Michael, 1976. "Product Selection, Fixed Costs, and Monopolistic Competition," Review of Economic Studies, Wiley Blackwell, vol. 43(2), pages 217-35, June.
  12. Harris, Richard, 1984. "Applied General Equilibrium Analysis of Small Open Economies with Scale Economies and Imperfect Competition," American Economic Review, American Economic Association, vol. 74(5), pages 1016-32, December.
  13. Lancaster, Kelvin, 1980. "Intra-industry trade under perfect monopolistic competition," Journal of International Economics, Elsevier, vol. 10(2), pages 151-175, May.
  14. Thomas Chaney, 2008. "Distorted Gravity: The Intensive and Extensive Margins of International Trade," American Economic Review, American Economic Association, vol. 98(4), pages 1707-21, September.
  15. Feenstra, Robert C, 1994. "New Product Varieties and the Measurement of International Prices," American Economic Review, American Economic Association, vol. 84(1), pages 157-77, March.
  16. Mark J. Melitz, 2002. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," NBER Working Papers 8881, National Bureau of Economic Research, Inc.
  17. Helpman, Elhanan, 1981. "International trade in the presence of product differentiation, economies of scale and monopolistic competition : A Chamberlin-Heckscher-Ohlin approach," Journal of International Economics, Elsevier, vol. 11(3), pages 305-340, August.
  18. Krugman, Paul, 1980. "Scale Economies, Product Differentiation, and the Pattern of Trade," American Economic Review, American Economic Association, vol. 70(5), pages 950-59, December.
  19. Ottaviano, Gianmarco & Melitz, Marc, 2008. "Market Size, Trade, and Productivity," Scholarly Articles 3229096, Harvard University Department of Economics.
  20. Feenstra, Robert C., 2003. "A homothetic utility function for monopolistic competition models, without constant price elasticity," Economics Letters, Elsevier, vol. 78(1), pages 79-86, January.
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