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Monopolistic Competition and International Trade: Reconsidering the Evidence

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  • David Hummels
  • James Levinsohn

Abstract

In this paper, we test some propositions about international trade flows that are derived from a model of monopolistic competition developed by Elhanan Helpman. We investigate whether the volume of trade between OECD countries is consistent with the predictions of a modal in which all trade is intra-industry trade in differentiated products. We then repeat the test with non-OECD countries. We also investigate whether the share of intra-industry trade is consistent with a more general theoretical model in which some, but not all, trade is intra-industry trade. Our results lead us to question the apparent empirical success of these models.

Suggested Citation

  • David Hummels & James Levinsohn, 1993. "Monopolistic Competition and International Trade: Reconsidering the Evidence," NBER Working Papers 4389, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:4389
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    1. repec:fth:michin:324 is not listed on IDEAS
    2. Hummels, David & Levinsohn, James A, 1993. "Product Differentiation as a," American Economic Review, American Economic Association, vol. 83(2), pages 445-449, May.
    3. Hummels, D. & Levinsohn, J., 1993. "Product Differentiation as a Source of Comparative Advantage?," Working Papers 324, Research Seminar in International Economics, University of Michigan.
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    JEL classification:

    • F1 - International Economics - - Trade

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