Two are Few and Four are Many: Number Effects in Experimental Oligopolies
AbstractIn this paper we investigate how the competitiveness of Cournot markets varies with the number of firms in an industry. We review previous Cournot experiments in the literature. Additionally, we conduct a new series of experiments studying oligopolies with two, three, four, and five firms in a unified frame. With two firms we find some collusion. Three-firm oligopolies tend to produce outputs at the Nash level. Markets with four or five firms are never collusive and typically settle at or above the Cournot outcome. Some of those markets are actually quite competitive with outputs close to the Walrasian outcome.
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Bibliographic InfoPaper provided by University of Bonn, Germany in its series Bonn Econ Discussion Papers with number bgse12_2001.
Date of creation: Mar 2001
Date of revision:
Contact details of provider:
Postal: Bonn Graduate School of Economics, University of Bonn, Adenauerallee 24 - 26, 53113 Bonn, Germany
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Web page: http://www.bgse.uni-bonn.de
Cournot markets; oligopolies; experiments;
Other versions of this item:
- Huck, Steffen & Normann, Hans-Theo & Oechssler, Jorg, 2004. "Two are few and four are many: number effects in experimental oligopolies," Journal of Economic Behavior & Organization, Elsevier, vol. 53(4), pages 435-446, April.
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
- C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
- C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
This paper has been announced in the following NEP Reports:
- NEP-ALL-2001-09-26 (All new papers)
- NEP-EXP-2001-09-26 (Experimental Economics)
- NEP-MIC-2001-09-26 (Microeconomics)
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- Dufwenberg, Martin & Gneezy, Uri, 2000.
"Price competition and market concentration: an experimental study,"
International Journal of Industrial Organization,
Elsevier, vol. 18(1), pages 7-22, January.
- Dufwenberg, M. & Gneezy, U., 1998. "Price competition and market concentration: An experimental study," Discussion Paper 1998-27, Tilburg University, Center for Economic Research.
- Dufwenberg, Martin & Gneezy, Uri, 1998. "Price Competition and Market Concentration: An Experimental Study," Working Paper Series 1998:8, Uppsala University, Department of Economics.
- Dufwenberg, Martin & Gneezy, Uri, 1999. "Price Competition and Market Concentration: An experimental Study," Research Papers in Economics 1999:4, Stockholm University, Department of Economics.
- Dufwenberg, M. & Gneezy, U., 1998. "Price Competition and Market COncentration: An Experimental Study," Papers 1998-08, Uppsala - Working Paper Series.
- Reinhard Selten & Michael Mitzkewitz & Gerald R. Uhlich, 1997.
"Duopoly Strategies Programmed by Experienced Players,"
Econometric Society, vol. 65(3), pages 517-556, May.
- Selten,Reinhard & Mitzkewitz,Michael & Uhlich,Gerald, . "Duopoly strategies programmed by experienced players," Discussion Paper Serie B 106, University of Bonn, Germany.
- Mason, Charles F. & Phillips, Owen R. & Redington, Douglas B., 1991. "The role of gender in a non-cooperative game," Journal of Economic Behavior & Organization, Elsevier, vol. 15(2), pages 215-235, March.
- Brown-Kruse, Jamie, et al, 1994. "Bertrand-Edgeworth Competition in Experimental Markets," Econometrica, Econometric Society, vol. 62(2), pages 343-72, March.
- Huck, Steffen & Müller, Wieland & Normann, Hans-Theo, 1999.
"Stackelberg beats Cournot: On collusion and efficiency in experimental markets,"
SFB 373 Discussion Papers
1999,32, Humboldt University of Berlin, Interdisciplinary Research Project 373: Quantification and Simulation of Economic Processes.
- Huck, Steffen & Muller, Wieland & Normann, Hans-Theo, 2001. "Stackelberg Beats Cournot: On Collusion and Efficiency in Experimental Markets," Economic Journal, Royal Economic Society, vol. 111(474), pages 749-65, October.
- Antoni Bosch-DomËnech & Nicolaas J. Vriend, 2003.
"Imitation of successful behaviour in cournot markets,"
Royal Economic Society, vol. 113(487), pages 495-524, 04.
- Antoni Bosch-Domènech & Nicolaas J. Vriend, 1998. "Imitation of succesful behavior in Cournot markets," Economics Working Papers 269, Department of Economics and Business, Universitat Pompeu Fabra, revised May 1999.
- Holt, Charles A, 1985. "An Experimental Test of the Consistent-Conjectures Hypothesis," American Economic Review, American Economic Association, vol. 75(3), pages 314-25, June.
- Huck, Steffen & Normann, Hans-Theo & Oechssler, Jorg, 2000.
"Does information about competitors' actions increase or decrease competition in experimental oligopoly markets?,"
International Journal of Industrial Organization,
Elsevier, vol. 18(1), pages 39-57, January.
- Steffen Huck & Hans-Theo Normann & Joerg Oechssler, 1998. "Does information about competitors' actions increase or decrease competition in experimental oligopoly markets?," Industrial Organization 9803004, EconWPA.
- Davis, Douglas D. & Wilson, Bart J., 2005. "Differentiated product competition and the Antitrust Logit Model: an experimental analysis," Journal of Economic Behavior & Organization, Elsevier, vol. 57(1), pages 89-113, May.
- Steffen Huck & Hans-Theo Normann & Jörg Oechssler, 2002.
"Stability of the Cournot Process - Experimental Evidence,"
Bonn Econ Discussion Papers
bgse1_2002, University of Bonn, Germany.
- Steffen Huck & Hans-Theo Normann & Jörg Oechssler, 2002. "Stability of the Cournot process - experimental evidence," International Journal of Game Theory, Springer, vol. 31(1), pages 123-136.
- Steffen Huck & Hans-Theo Normann & Joerg Oechssler, 1997. "Stability of the Cournot Process - Experimental Evidence," Experimental 9707002, EconWPA.
- Steffen Huck & Hans-Theo Normann & Joerg Oechssler, 1997.
"Learning in Cournot Oligopoly - An Experiment,"
Game Theory and Information
9707009, EconWPA, revised 22 Jul 1997.
- Feinberg, Robert M & Husted, Thomas A, 1993. "An Experimental Test of Discount-Rate Effects on Collusive Behaviour in Duopoly Markets," Journal of Industrial Economics, Wiley Blackwell, vol. 41(2), pages 153-60, June.
- Charles F. Mason & Owen R. Phillips, 1997. "Information And Cost Asymmetry In Experimental Duopoly Markets," The Review of Economics and Statistics, MIT Press, vol. 79(2), pages 290-299, May.
- Rassenti, Stephen & Reynolds, Stanley S. & Smith, Vernon L. & Szidarovszky, Ferenc, 2000. "Adaptation and convergence of behavior in repeated experimental Cournot games," Journal of Economic Behavior & Organization, Elsevier, vol. 41(2), pages 117-146, February.
- Benson, Bruce L. & Faminow, M. D., 1988. "The impact of experience on prices and profits in experimental duopoly markets," Journal of Economic Behavior & Organization, Elsevier, vol. 9(4), pages 345-365, June.
- Ronald Harstad & Stephen Martin & Hans-Theo Normann, 1997. "Experimental Tests of Consciously Parallel Behaviour in Oligopoly," CIE Discussion Papers 1997-07, University of Copenhagen. Department of Economics. Centre for Industrial Economics.
- Franciosi, Robert, et al, 1995. "Fairness: Effect on Temporary and Equilibrium Prices in Posted-Offer Markets," Economic Journal, Royal Economic Society, vol. 105(431), pages 938-50, July.
- Mason, Charles F & Phillips, Owen R & Nowell, Clifford, 1992. "Duopoly Behavior in Asymmetric Markets: An Experimental Evaluation," The Review of Economics and Statistics, MIT Press, vol. 74(4), pages 662-70, November.
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