Welfare losses under Cournot competition
AbstractWe find that in a market for a homogeneous good where firms are identical, compete in quantities and produce with constant returns, the percentage of wel-fare losses (PWL) is small with as few as five competitors for a class of demand functions which includes linear and isoelastic cases. However with fixed costs and asymmetric firms PWL can be large. We provide exact formulae of PWL and robust constructions of markets were PWL is close to one in these two cases. We show that the market structure that maximizes PWL is either monopoly or dominant firm, depending on demand. Finally we prove that PWL is minimized when all firms are identical, a clear indication that the assumption of identical firms biases the estimation of PWL downwards.
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.
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.
Bibliographic InfoArticle provided by Elsevier in its journal International Journal of Industrial Organization.
Volume (Year): 26 (2008)
Issue (Month): 5 (September)
Contact details of provider:
Web page: http://www.elsevier.com/locate/inca/505551
Other versions of this item:
- D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
- L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
- L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
- L50 - Industrial Organization - - Regulation and Industrial Policy - - - General
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.:
- Novshek, William, 1980. "Cournot Equilibrium with Free Entry," Review of Economic Studies, Wiley Blackwell, vol. 47(3), pages 473-86, April.
- Jeffrey R. Campbell & Hugo A. Hopenhayn, 2005.
"Market Size Matters,"
Journal of Industrial Economics,
Wiley Blackwell, vol. 53(1), pages 1-25, 03.
- Jeffrey R. Campbell & Hugo Hopenhayn, 2003. "Market size matters," Working Paper Series WP-03-12, Federal Reserve Bank of Chicago.
- Jeffrey R. Campbell & Hugo A. Hopenhayn, 2002. "Market Size Matters," NBER Working Papers 9113, National Bureau of Economic Research, Inc.
- Jeffrey Campbell, 2000. "Market Size Matters," Econometric Society World Congress 2000 Contributed Papers 1225, Econometric Society.
- Lahiri, Sajal & Ono, Yoshiyasu, 1988. "Helping Minor Firms Reduces Welfare," Economic Journal, Royal Economic Society, vol. 98(393), pages 1199-1202, December.
- Farrell, Joseph & Shapiro, Carl, 1988.
"Horizontal Mergers: An Equilibrium Analysis,"
Department of Economics, Working Paper Series
qt0tp305nx, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- Bresnahan, T.F & Reiss, P.C., 1989.
"Entry And Competition In Concentrated Markets,"
151, Stanford - Studies in Industry Economics.
- Fraysse, J. & Moreaux, M., 1981. "Cournot equilibrium in large markets under increasing returns," Economics Letters, Elsevier, vol. 8(3), pages 217-220.
- McHardy, J.P., 2000. "Miscalculations of Monopoly and Oligopoly Welfare Losses with Linear Demand," Papers 274, Universite de Nantes - Economie Internationale et de l'Entreprise.
- Javier M. López-Cuñat, 1999. "One-stage and two-stage entry Cournot equilibria," Investigaciones Economicas, Fundación SEPI, vol. 23(1), pages 115-128, January.
- N. Gregory Mankiw & Michael D. Whinston, 1986. "Free Entry and Social Inefficiency," RAND Journal of Economics, The RAND Corporation, vol. 17(1), pages 48-58, Spring.
- C.C. von Weizsaker, 1980. "A Welfare Analysis of Barriers to Entry," Bell Journal of Economics, The RAND Corporation, vol. 11(2), pages 399-420, Autumn.
- Simon P. Anderson & Régis Renault, 2001.
"Efficiency and surplus bounds in Cournot competition,"
Virginia Economics Online Papers
360, University of Virginia, Department of Economics.
- Anderson, Simon P. & Renault, Regis, 2003. "Efficiency and surplus bounds in Cournot competition," Journal of Economic Theory, Elsevier, vol. 113(2), pages 253-264, December.
- Simon P. Anderson & Regis Renault, 2001. "Effciency and surplus bounds in Cournot competition," Virginia Economics Online Papers 353, University of Virginia, Department of Economics.
- Yarrow, G K, 1985. "Welfare Losses in Oligopoly and Monopolistic Competition," Journal of Industrial Economics, Wiley Blackwell, vol. 33(4), pages 515-29, June.
- Daughety, Andrew F, 1990. "Beneficial Concentration," American Economic Review, American Economic Association, vol. 80(5), pages 1231-37, December.
- Dasgupta, Partha & Ushio, Yoshiaki, 1981. "On the rate of convergence of oligopoly equilibria in large markets : An example," Economics Letters, Elsevier, vol. 8(1), pages 13-17.
- Guesnerie, Roger & Hart, Oliver, 1985. "Welfare Losses Due to Imperfect Competition: Asymptotic Results for Cournot Nash Equilibria with and without Free Entry," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 26(3), pages 525-45, October.
- Suzumura, Kotaro & Kiyono, Kazuharu, 1987. "Entry Barriers and Economic Welfare," Review of Economic Studies, Wiley Blackwell, vol. 54(1), pages 157-67, January.
- Robert A. Ritz, 2008. "Cost pass-through under delegation," Economics Series Working Papers 404, University of Oxford, Department of Economics.
- Meunier, Guy, 2010. "Capacity choice, technology mix and market power," Energy Economics, Elsevier, vol. 32(6), pages 1306-1315, November.
- Argenziano, Rossella & Schmidt-Dengler, Philipp, 2013. "Competition, timing of entry and welfare in a preemption game," Economics Letters, Elsevier, vol. 120(3), pages 509-512.
- Andrew F. Newman & Patrick Legros, 2011. "Incomplete Contracts and Industrial Organization: A Survey," Boston University - Department of Economics - Working Papers Series WP2011-036, Boston University - Department of Economics.
- Argenziano, Rossella & Schmidt-Dengler, Philipp, 2012. "Inefficient entry order in preemption games," Journal of Mathematical Economics, Elsevier, vol. 48(6), pages 445-460.
- Corchón, Luis C. & Zudenkova, Galina, 2009.
"Computing welfare losses from data under imperfect competition with heterogeneous goods,"
International Journal of Industrial Organization,
Elsevier, vol. 27(6), pages 646-654, November.
- Luis C. Corchon & Galina Zudenkova, 2008. "Computing welfare losses from data under imperfect competition with heterogeneous goods," Economics Working Papers we082616, Universidad Carlos III, Departamento de Economía.
- Simai He & Xiaoguo Wang & Shuzhong Zhang, 2013. "On a generalized Cournot oligopolistic competition game," Journal of Global Optimization, Springer, vol. 56(4), pages 1335-1345, August.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei).
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.