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Substitutability and Competition in the Dixit-Stiglitz Model

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Author Info
Koeniger, Winfried () (IZA Bonn)
Licandro, Omar (European University Institute and FEDEA)

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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 affect the relative price of consumption goods, implying that the induced changes in market power do not have any direct effect on equilibrium allocations.

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Publisher Info
Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 1007.

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Length: 8 pages
Date of creation: Feb 2004
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Handle: RePEc:iza:izadps:dp1007

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Related research
Keywords: monopolistic competition; substitution; market power; output;

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Find related papers by JEL classification:
L16 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Industrial Organization and Macroeconomics; Macroeconomic Industrial Structure

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Chad Syverson, 2003. "Product Substitutability and Productivity Dispersion," NBER Working Papers 10049, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
  2. 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. [Downloadable!] (restricted)
    Other versions:
  3. Aghion, Philippe, et al, 2001. "Competition, Imitation and Growth with Step-by-Step Innovation," Review of Economic Studies, Blackwell Publishing, vol. 68(3), pages 467-92, July.
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

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  2. Simon Sosvilla-Rivero & Pedro N. Rodríguez, . "Linkages in international stock markets: Evidence from a classification procedure," Working Papers 2004-23, FEDEA. [Downloadable!]
  3. 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. [Downloadable!]
  4. José A. Herce, . "Could this ever happen in Spain? Economic and policy aspects of a SARS-like episode," Working Papers 2004-09, FEDEA. [Downloadable!]
  5. Helge Sanner, 2009. "Economy vs. history," The Annals of Regional Science, Springer, vol. 43(2), pages 283-306, June. [Downloadable!] (restricted)
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