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An Elementary Theory of Comparative Advantage

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  • Arnaud Costinot

Abstract

Comparative advantage, whether driven by technology or factor endowment, is at the core of neoclassical trade theory. Using tools from the mathematics of complementarity, this paper offers a simple, yet unifying perspective on the fundamental forces that shape comparative advantage. The main results characterize sufficient conditions on factor productivity and factor supply to predict patterns of international specialization in a multi-factor generalization of the Ricardian model to which we refer as an "elementary neoclassical economy." These conditions, which hold for an arbitrarily large number of countries, goods, and factors, generalize and extend many results from the previous trade literature. They also offer new insights about the joint effects of technology and factor endowments on international specialization.

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  • Arnaud Costinot, 2009. "An Elementary Theory of Comparative Advantage," NBER Working Papers 14645, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:14645
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    1. Robert Shimer & Lones Smith, 2000. "Assortative Matching and Search," Econometrica, Econometric Society, vol. 68(2), pages 343-370, March.
    2. Costinot, Arnaud, 2009. "On the origins of comparative advantage," Journal of International Economics, Elsevier, vol. 77(2), pages 255-264, April.
    3. Costinot, Arnaud & Komunjer, Ivana, 2006. "What Good Do Countries Trade? New Ricardian Predictions," University of California at San Diego, Economics Working Paper Series qt9t9818ng, Department of Economics, UC San Diego.
    4. Nathan Nunn, 2007. "Relationship-Specificity, Incomplete Contracts, and the Pattern of Trade," The Quarterly Journal of Economics, Oxford University Press, vol. 122(2), pages 569-600.
    5. Pol Antras & Elhanan Helpman, 2004. "Global Sourcing," Journal of Political Economy, University of Chicago Press, vol. 112(3), pages 552-580, June.
    6. John Romalis, 2004. "Factor Proportions and the Structure of Commodity Trade," American Economic Review, American Economic Association, vol. 94(1), pages 67-97, March.
    7. Banerjee, Abhijit V & Newman, Andrew F, 1993. "Occupational Choice and the Process of Development," Journal of Political Economy, University of Chicago Press, vol. 101(2), pages 274-298, April.
    8. Jones, Ronald W & Scheinkman, Jose A, 1977. "The Relevance of the Two-Sector Production Model in Trade Theory," Journal of Political Economy, University of Chicago Press, vol. 85(5), pages 909-935, October.
    9. Trefler, Daniel, 1993. "International Factor Price Differences: Leontief Was Right!," Journal of Political Economy, University of Chicago Press, vol. 101(6), pages 961-987, December.
    10. Daron Acemoglu & Jaume Ventura, 2002. "The World Income Distribution," The Quarterly Journal of Economics, Oxford University Press, vol. 117(2), pages 659-694.
    11. Andrei A. Levchenko, 2007. "Institutional Quality and International Trade," Review of Economic Studies, Oxford University Press, vol. 74(3), pages 791-819.
    12. Matsuyama, Kiminori, 1996. "Why Are There Rich and Poor Countries? Symmetry-Breaking in the World Economy," Journal of the Japanese and International Economies, Elsevier, vol. 10(4), pages 419-439, December.
    13. Susan Athey, 2002. "Monotone Comparative Statics under Uncertainty," The Quarterly Journal of Economics, Oxford University Press, vol. 117(1), pages 187-223.
    14. An, Mark Yuying, 1998. "Logconcavity versus Logconvexity: A Complete Characterization," Journal of Economic Theory, Elsevier, vol. 80(2), pages 350-369, June.
    15. Chor, Davin, 2010. "Unpacking sources of comparative advantage: A quantitative approach," Journal of International Economics, Elsevier, vol. 82(2), pages 152-167, November.
    16. Ian Jewitt, 1987. "Risk Aversion and the Choice Between Risky Prospects: The Preservation of Comparative Statics Results," Review of Economic Studies, Oxford University Press, vol. 54(1), pages 73-85.
    17. repec:hrv:faseco:4784029 is not listed on IDEAS
    18. Ethier, Wilfred J., 1984. "Higher dimensional issues in trade theory," Handbook of International Economics,in: R. W. Jones & P. B. Kenen (ed.), Handbook of International Economics, edition 1, volume 1, chapter 3, pages 131-184 Elsevier.
    19. Dornbusch, Rudiger & Fischer, Stanley & Samuelson, Paul A, 1977. "Comparative Advantage, Trade, and Payments in a Ricardian Model with a Continuum of Goods," American Economic Review, American Economic Association, vol. 67(5), pages 823-839, December.
    20. Becker, Gary S, 1973. "A Theory of Marriage: Part I," Journal of Political Economy, University of Chicago Press, vol. 81(4), pages 813-846, July-Aug..
    21. Daron Acemoglu, 1998. "Why Do New Technologies Complement Skills? Directed Technical Change and Wage Inequality," The Quarterly Journal of Economics, Oxford University Press, vol. 113(4), pages 1055-1089.
    22. Paul R. Milgrom, 1981. "Good News and Bad News: Representation Theorems and Applications," Bell Journal of Economics, The RAND Corporation, vol. 12(2), pages 380-391, Autumn.
    23. Patrick Legros & Andrew F. Newman, 2002. "Monotone Matching in Perfect and Imperfect Worlds," Review of Economic Studies, Oxford University Press, vol. 69(4), pages 925-942.
    24. Davis, Donald R., 1995. "Intra-industry trade: A Heckscher-Ohlin-Ricardo approach," Journal of International Economics, Elsevier, vol. 39(3-4), pages 201-226, November.
    25. Kiminori Matsuyama, 2005. "Credit Market Imperfections and Patterns of International Trade and Capital Flows," Journal of the European Economic Association, MIT Press, vol. 3(2-3), pages 714-723, 04/05.
    26. Epple, Dennis & Romer, Thomas, 1991. "Mobility and Redistribution," Journal of Political Economy, University of Chicago Press, vol. 99(4), pages 828-858, August.
    27. Milgrom, Paul R & Weber, Robert J, 1982. "A Theory of Auctions and Competitive Bidding," Econometrica, Econometric Society, vol. 50(5), pages 1089-1122, September.
    28. Peter M. Morrow, 2008. "East is East and West is West: A Ricardian-Heckscher-Ohlin Model of Comparative Advantage," Working Papers 575, Research Seminar in International Economics, University of Michigan.
    29. Deardorff, Alan V, 1980. "The General Validity of the Law of Comparative Advantage," Journal of Political Economy, University of Chicago Press, vol. 88(5), pages 941-957, October.
    30. Franziska Ohnsorge & Daniel Trefler, 2004. "Sorting It Out: International Trade and Protection With Heterogeneous Workers," NBER Working Papers 10959, National Bureau of Economic Research, Inc.
    31. Vogel, Jonathan, 2007. "Institutions and moral hazard in open economies," Journal of International Economics, Elsevier, vol. 71(2), pages 495-514, April.
    32. Karlin, Samuel & Rinott, Yosef, 1980. "Classes of orderings of measures and related correlation inequalities. I. Multivariate totally positive distributions," Journal of Multivariate Analysis, Elsevier, vol. 10(4), pages 467-498, December.
    33. Ruffin, Roy J, 1988. "The Missing Link: The Ricardian Approach to the Factor Endowments Theory of Trade," American Economic Review, American Economic Association, vol. 78(4), pages 759-772, September.
    34. Yanagawa, Noriyuki, 1996. "Economic development in a world with many countries," Journal of Development Economics, Elsevier, vol. 49(2), pages 271-288, May.
    35. Luis Garicano & Esteban Rossi-Hansberg, 2006. "Organization and Inequality in a Knowledge Economy," The Quarterly Journal of Economics, Oxford University Press, vol. 121(4), pages 1383-1435.
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    JEL classification:

    • F10 - International Economics - - Trade - - - General
    • F11 - International Economics - - Trade - - - Neoclassical Models of Trade

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