Counterintuitive number effects in experimental oligopolies
Recent theoretical research on oligopolistic competition suggests that under certain conditions prices increase with the number of competing firms. However, this counterintuitive result is based on comparative-static analyses which neglect the importance of dynamic strategies in naturally-occurring markets. When firms compete repeatedly, supra-competitive prices can become sustainable but this is arguably more difficult when more firms operate in the market. This paper reports the results of laboratory experiments investigating pricing behavior in a setting in which (static) theory predicts the counterintuitive number effect. Under a random matching protocol, which retains much of the one-shot nature of the model, the data corroborates the gametheoretic prediction. Under fixed matching duopolists post substantially higher prices, whereas prices in quadropolies remain very similar. As a result, the predicted effect is no longer observed, and towards the end the reverse effect is observed.
(This abstract was borrowed from another version of this item.)
If 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.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Volume (Year): 11 (2008)
Issue (Month): 4 (December)
|Contact details of provider:|| Web page: http://www.springer.com|
More information through EDIRC
|Order Information:||Web: http://www.springer.com/economics/economic+theory/journal/10683/PS2|
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.:
- 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, 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," Papers 1998-08, Uppsala - Working Paper Series.
- Dufwenberg, Martin & Gneezy, Uri, 1999. "Price Competition and Market Concentration: An experimental Study," Research Papers in Economics 1999:4, Stockholm University, Department of Economics.
- Cary A. Deck & Bart J. Wilson, 2003. "Automated Pricing Rules in Electronic Posted Offer Markets," Economic Inquiry, Western Economic Association International, vol. 41(2), pages 208-223, April.
- James Andreoni & Rachel Croson, 2001.
"Partners versus Strangers: Random Rematching in Public Goods Experiments,"
Levine's Working Paper Archive
563824000000000132, David K. Levine.
- Andreoni, James & Croson, Rachel, 2008. "Partners versus Strangers: Random Rematching in Public Goods Experiments," Handbook of Experimental Economics Results, Elsevier.
- Andreoni,J. & Croson,R., 1998. "Partners versus strangers : random rematching in public goods experiments," Working papers 11, Wisconsin Madison - Social Systems.
- Kreps, David M. & Milgrom, Paul & Roberts, John & Wilson, Robert, 1982.
"Rational cooperation in the finitely repeated prisoners' dilemma,"
Journal of Economic Theory,
Elsevier, vol. 27(2), pages 245-252, August.
- David Kreps & Paul Milgrom & John Roberts & Bob Wilson, 2010. "Rational Cooperation in the Finitely Repeated Prisoners' Dilemma," Levine's Working Paper Archive 239, David K. Levine.
- Abreu, Dilip, 1986. "Extremal equilibria of oligopolistic supergames," Journal of Economic Theory, Elsevier, vol. 39(1), pages 191-225, June.
- Hans-Theo Normann & Brian Wallace, 2012.
"The impact of the termination rule on cooperation in a prisoner’s dilemma experiment,"
International Journal of Game Theory,
Springer;Game Theory Society, vol. 41(3), pages 707-718, August.
- Normann, Hans-Theo & Wallace, Brian, 2011. "The impact of the termination rule on cooperation in a prisoner's dilemma experiment," DICE Discussion Papers 19, Düsseldorf Institute for Competition Economics (DICE), University of Düsseldorf.
- Stiglitz, Joseph E, 1987. "Competition and the Number of Firms in a Market: Are Duopolies More Competitive than Atomistic Markets?," Journal of Political Economy, University of Chicago Press, vol. 95(5), pages 1041-1061, October.
- E. H. Chamberlin, 1929. "Duopoly: Value Where Sellers Are Few," The Quarterly Journal of Economics, Oxford University Press, vol. 44(1), pages 63-100.
- Holt, Charles A, 1985. "An Experimental Test of the Consistent-Conjectures Hypothesis," American Economic Review, American Economic Association, vol. 75(3), pages 314-325, June.
When requesting a correction, please mention this item's handle: RePEc:kap:expeco:v:11:y:2008:i:4:p:390-401. 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: (Sonal Shukla)or (Rebekah McClure)
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.