Substitutability and Competition in the Dixit-Stiglitz Model
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.
|Date of creation:||Feb 2004|
|Date of revision:|
|Contact details of provider:|| Postal: |
Phone: +49 228 3894 223
Fax: +49 228 3894 180
Web page: http://www.iza.org
|Order Information:|| Postal: IZA, Margard Ody, P.O. Box 7240, D-53072 Bonn, Germany|
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.:
- 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.
- Dixit, Avinash K & Stiglitz, Joseph E, 1975. "Monopolistic Competition and Optimum Product Diversity," The Warwick Economics Research Paper Series (TWERPS) 64, University of Warwick, Department of Economics.
- Chad Syverson, 2004.
"Product Substitutability and Productivity Dispersion,"
The Review of Economics and Statistics,
MIT Press, vol. 86(2), pages 534-550, May.
- Chad Syverson, 2003. "Product Substitutability and Productivity Dispersion," NBER Working Papers 10049, National Bureau of Economic Research, Inc.
- Piercarlo Zanchettin & Vincenzo Denicolò, 2004. "Competition and Growth in Neo-Schumpeterian Models," Discussion Papers in Economics 04/28, Department of Economics, University of Leicester.
When requesting a correction, please mention this item's handle: RePEc:iza:izadps:dp1007. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Mark Fallak)
If references are entirely missing, you can add them using this form.