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Substitutability and Competition in the Dixit-Stiglitz Model

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  • Winfried KOENIGER
  • Omar LICANDRO

Abstract

The effects of competition on growth are analyzed in the recent literature by comparing economies with the same market structure but different degrees of substitutability. In this note, we show that in a general equilibrium model with monopolistic competition à la Dixit-Stiglitz the effect of substitutability on the allocation of resources is independent of the associated change in competition. Higher substitutability increases welfare, output and productivity because resources shift towards the most productive sectors. However, since markups are equal across sectors, changes in market power do not a.ect the relative price of consumption goods, implying that the induced changes in market power do not have any direct effect on equilibrium allocations.

Suggested Citation

  • Winfried KOENIGER & Omar LICANDRO, 2004. "Substitutability and Competition in the Dixit-Stiglitz Model," Economics Working Papers ECO2004/05, European University Institute.
  • Handle: RePEc:eui:euiwps:eco2004/05
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    References listed on IDEAS

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    1. 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.
    2. Chad Syverson, 2004. "Product Substitutability and Productivity Dispersion," The Review of Economics and Statistics, MIT Press, vol. 86(2), pages 534-550, May.
    3. Piercarlo Zanchettin & Vincenzo Denicolò, 2004. "Competition and Growth in Neo-Schumpeterian Models," Discussion Papers in Economics 04/28, Department of Economics, University of Leicester.
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    Cited by:

    1. Mosel Malte, 2011. "Competition, Imitation, and R&D Productivity in a Growth Model with Industry-Specific Patent Protection," Review of Law & Economics, De Gruyter, vol. 7(2), pages 601-652, December.
    2. Helge Sanner, 2005. "Economy vs History - What Does Actually Determine the Distribution of Shops' Locations in Cities?," ERSA conference papers ersa05p175, European Regional Science Association.
    3. Josheski, Dushko & Koteski, Cane & Lazarov, Darko, 2011. "Monopolistic competition: Critical evaluation the theory of monopolistic competition with specific reference to the seminal 1977 paper by Dixit and Stiglitz," MPRA Paper 33802, University Library of Munich, Germany.
    4. Malte Mosel, 2009. "Competition, imitation, and R&D productivity in agrowth model with sector-specific patent protection," Working Papers 084, Bavarian Graduate Program in Economics (BGPE).
    5. Simon Sosvilla-Rivero & Pedro Rodriguez, 2010. "Linkages in international stock markets: evidence from a classification procedure," Applied Economics, Taylor & Francis Journals, vol. 42(16), pages 2081-2089.
    6. Malte Mosel, 2010. "Competition, Imitation, and R&D Productivity in a Growth Model with Sector-Specific Patent Protection," CESifo Working Paper Series 3109, CESifo Group Munich.
    7. Helge Sanner, 2004. "Economy vs. History: What Does Actually Determine the Distribution of Firms' Locations in Cities?," Volkswirtschaftliche Diskussionsbeiträge 67, Universität Potsdam, Wirtschafts- und Sozialwissenschaftliche Fakultät, revised Sep 2004.
    8. José A. Herce, "undated". "Could this ever happen in Spain? Economic and policy aspects of a SARS-like episode," Working Papers 2004-09, FEDEA.
    9. Helge Sanner, 2009. "Economy vs. history," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 43(2), pages 283-306, June.

    More about this item

    JEL classification:

    • O3 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights
    • L16 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Industrial Organization and Macroeconomics; Macroeconomic Industrial Structure
    • D5 - Microeconomics - - General Equilibrium and Disequilibrium

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