Two are Few and Four are Many: Number Effects in Experimental Oligopolies
In 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.
|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|
Fax: +49 228 73 6884
Web page: http://www.bgse.uni-bonn.de
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.:
- Selten,Reinhard & Mitzkewitz,Michael & Uhlich,Gerald, .
"Duopoly strategies programmed by experienced players,"
Discussion Paper Serie B
106, University of Bonn, Germany.
- Reinhard Selten & Michael Mitzkewitz & Gerald R. Uhlich, 1997. "Duopoly Strategies Programmed by Experienced Players," Econometrica, Econometric Society, vol. 65(3), pages 517-556, May.
- Steffen Huck & Hans-Theo Normann & Joerg Oechssler, 1997.
"Stability of the Cournot Process - Experimental Evidence,"
- Steffen Huck & Hans-Theo Normann & Jörg Oechssler, 2002. "Stability of the Cournot process - experimental evidence," International Journal of Game Theory, Springer;Game Theory Society, vol. 31(1), pages 123-136.
- 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.
- 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.
- 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.
- 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, Martin & Gneezy, Uri, 1999. "Price Competition and Market Concentration: An experimental Study," Research Papers in Economics 1999:4, Stockholm University, Department of Economics.
- Dufwenberg, Martin & Gneezy, Uri, 1998. "Price Competition and Market Concentration: An Experimental Study," Working Paper Series 1998:8, Uppsala University, Department of Economics.
- Dufwenberg, M. & Gneezy, U., 1998. "Price Competition and Market COncentration: An Experimental Study," Papers 1998-08, Uppsala - Working Paper Series.
- Steffen Huck & Hans-Theo Normann & Joerg Oechssler, 1997.
"Learning in Cournot Oligopoly - An Experiment,"
Game Theory and Information
9707009, EconWPA, revised 22 Jul 1997.
- 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.
- Steffen Huck & Hans-Theo Normann & Joerg Oechssler, 1998.
"Does information about competitors' actions increase or decrease competition in experimental oligopoly markets?,"
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Brown-Kruse, Jamie, et al, 1994. "Bertrand-Edgeworth Competition in Experimental Markets," Econometrica, Econometric Society, vol. 62(2), pages 343-72, March.
- F. T. Dolbear & L. B. Lave & G. Bowman & A. Lieberman & E. Prescott & F. Rueter & R. Sherman, 1968. "Collusion in Oligopoly: An Experiment on the Effect of Numbers and Information," The Quarterly Journal of Economics, Oxford University Press, vol. 82(2), pages 240-259.
- 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.
- 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.
- 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.
- 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.
When requesting a correction, please mention this item's handle: RePEc:bon:bonedp:bgse12_2001. 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: (BGSE Office)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.