Existence, Uniqueness, and Symmetry of Free-Entry Cournot Equilibrium: The Importance of Market Size and Technoligy Choice
AbstractThis article adds technology choice to a free-entry Cournot model with linear demand and constant marginal costs. Firms can choose from a discrete set of technologies. This simple framework yields non-existence of equilibrium, existence of multiple equilibria and equilibria in which ex-ante indentical firms choose different technoligies as possible outcomes. I provide a full characterization of the parameter sets for which these outcomes arise. The (non)-existence problem disappears if vertical market size is large. Non-existence is largely a ´small number´phenemenon. Asymetric equilibria emerge either because of indivisibilities or due to similarity of different technologies in terms of the average costs realized.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by University of Vienna, Department of Economics in its series Vienna Economics Papers with number 0214.
Date of creation: Nov 2002
Date of revision:
Contact details of provider:
Web page: http://www.univie.ac.at/vwl
Find related papers by JEL classification:
- D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
This paper has been announced in the following NEP Reports:
- NEP-ALL-2002-12-09 (All new papers)
- NEP-IND-2002-12-09 (Industrial Organization)
- NEP-MIC-2002-12-19 (Microeconomics)
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.:
- Jeffrey Campbell, 2000.
"Market Size Matters,"
Econometric Society World Congress 2000 Contributed Papers
1225, Econometric Society.
- Cabral, Luís M B & Mata, José, 2001.
"On the Evolution of the Firm Size Distribution: Facts and Theory,"
CEPR Discussion Papers
3045, C.E.P.R. Discussion Papers.
- Lu�s M B Cabral & Jos� Mata, 2003. "On the Evolution of the Firm Size Distribution: Facts and Theory," American Economic Review, American Economic Association, vol. 93(4), pages 1075-1090, September.
- Ngo Van Long & Antoine Soubeyran, 1999.
"Existence and Uniqueness of Cournot Equilibrium: A Contraction Mapping Approach,"
CIRANO Working Papers
- Van Long, Ngo & Soubeyran, Antoine, 2000. "Existence and uniqueness of Cournot equilibrium: a contraction mapping approach," Economics Letters, Elsevier, vol. 67(3), pages 345-348, June.
- Georg Götz & Walter Elberfeld & Frank Stähler, 2002.
"Vertical foreign direct investment, welfare, and employment,"
Vienna Economics Papers
0213, University of Vienna, Department of Economics.
- Elberfeld Walter & Götz Georg & Stähler Frank, 2005. "Vertical Foreign Direct Investment, Welfare, and Employment," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 5(1), pages 1-30, February.
- Davis, Peter, 2006. "Estimation of quantity games in the presence of indivisibilities and heterogeneous firms," Journal of Econometrics, Elsevier, vol. 134(1), pages 187-214, September.
- Lambson, Val Eugene, 1987. "Is the Concentration-Profit Correlation Partly an Artifact of Lumpy Technology?," American Economic Review, American Economic Association, vol. 77(4), pages 731-33, September.
- Dasgupta, Partha & Stiglitz, Joseph, 1980. "Industrial Structure and the Nature of Innovative Activity," Economic Journal, Royal Economic Society, vol. 90(358), pages 266-93, June.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Paper Administrator).
If references are entirely missing, you can add them using this form.