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.
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Bibliographic InfoPaper provided by University of Vienna, Department of Economics in its series Vienna Economics Papers with number 0214.
Date of creation: Nov 2002
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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)
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- Jeffrey R. Campbell & Hugo Hopenhayn, 2003.
"Market size matters,"
Working Paper Series
WP-03-12, Federal Reserve Bank of Chicago.
- Jeffrey Campbell, 2000. "Market Size Matters," Econometric Society World Congress 2000 Contributed Papers 1225, Econometric Society.
- Jeffrey R. Campbell & Hugo A. Hopenhayn, 2002. "Market Size Matters," NBER Working Papers 9113, National Bureau of Economic Research, Inc.
- 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.
- 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.
- 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.
- 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.
- 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.
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