The Welfare Effects of Third-Degree PriceDiscrimination in a Differentiated Oligopoly
AbstractThis paper studies the welfare effects of third-degree price discrimination under oligopolistic competition with horizontal product differentiation. We derive a necessary and sufficient condition for price discrimination to improve social welfare: the degree of substitution must be sufficiently greater in the "strong" market (where the discriminatory price is higher than the uniform price) than in the "weak" market (where it is lower). It is verified, however, that consumer surplus is never improved; social welfare improves solely due to an increase in the firms' profits.
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.
Bibliographic InfoPaper provided by Kyoto University, Institute of Economic Research in its series KIER Working Papers with number 800.
Date of creation: Dec 2011
Date of revision:
Contact details of provider:
Postal: Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501
Web page: http://www.kier.kyoto-u.ac.jp/eng/index.html
More information through EDIRC
Third-degree price discrimination; Oligopoly; Social welfare; Horizontal product differentiation; Substitutability; Complementarity;
Other versions of this item:
- Takanori Adachi & Noriaki Matsushima, 2011. "The Welfare Effects of Third-Degree Price Discrimination in a Differentiated Oligopoly," ISER Discussion Paper 0800, Institute of Social and Economic Research, Osaka University.
- D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
- 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
This paper has been announced in the following NEP Reports:
- NEP-ALL-2011-12-13 (All new papers)
- NEP-BEC-2011-12-13 (Business Economics)
- NEP-COM-2011-12-13 (Industrial Competition)
- NEP-IND-2011-12-13 (Industrial Organization)
- NEP-MKT-2011-12-13 (Marketing)
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.:
- Simon Cowan, 2007.
"The welfare effects of third-degree price discrimination with non-linear demand functions,"
Economics Series Working Papers
364, University of Oxford, Department of Economics.
- Simon Cowan, 2007. "The welfare effects of third-degree price discrimination with nonlinear demand functions," RAND Journal of Economics, RAND Corporation, vol. 38(2), pages 419-428, 06.
- Stole, Lars A., 2007. "Price Discrimination and Competition," Handbook of Industrial Organization, Elsevier.
- Schwartz, Marius, 1990. "Third-Degree Price Discrimination and Output: Generalizing a Welfare Result," American Economic Review, American Economic Association, vol. 80(5), pages 1259-62, December.
- Cowan, Simon & Vickers, John & Aguirre Pérez, Iñaki, 2009.
"Monopoly Price Discrimination and Demand Curvature,"
2009-39, Universidad del País Vasco - Departamento de Fundamentos del Análisis Económico I.
- I�aki Aguirre & Simon Cowan & John Vickers, 2010. "Monopoly Price Discrimination and Demand Curvature," American Economic Review, American Economic Association, vol. 100(4), pages 1601-15, September.
- Hausman, J.A. & Mackie-Mason, J.K., 1988.
"Price Discrimination And Patent Policy,"
88-13, Michigan - Center for Research on Economic & Social Theory.
- Asplund, Björn Marcus & Eriksson, Rickard & Strand, Niklas, 2002.
"Price Discrimination in Oligopoly: Evidence from Swedish Newspapers,"
CEPR Discussion Papers
3269, C.E.P.R. Discussion Papers.
- Asplund, Marcus & Eriksson, Rickard & Strand, Niklas, 2001. "Price Discrimination in Oligopoly: Evidence from Swedish Newspapers," Working Paper Series in Economics and Finance 468, Stockholm School of Economics, revised 01 Jan 2007.
- Neven, D. & Phlips, L., 1984.
"Discriminating oligopolists and common markets,"
CORE Discussion Papers
1984022, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Kenneth S. Corts, 1998. "Third-Degree Price Discrimination in Oligopoly: All-Out Competition and Strategic Commitment," RAND Journal of Economics, The RAND Corporation, vol. 29(2), pages 306-323, Summer.
- Liu Qihong & Serfes Konstantinos, 2011. "Third-Degree Price Discrimination," Journal of Industrial Organization Education, De Gruyter, vol. 5(1), pages 1-23, March.
- Ikeda, Takeshi & Toshimitsu, Tsuyoshi, 2010. "Third-degree price discrimination, quality choice, and welfare," Economics Letters, Elsevier, vol. 106(1), pages 54-56, January.
- Adachi, Takanori, 2002. "A Note on 'Third-Degree Price Discrimination with Interdependent Demands.'," Journal of Industrial Economics, Wiley Blackwell, vol. 50(2), pages 235, June.
- Belleflamme,Paul & Peitz,Martin, 2010. "Industrial Organization," Cambridge Books, Cambridge University Press, number 9780521681599, December.
- Xavier Vives, 2001. "Oligopoly Pricing: Old Ideas and New Tools," MIT Press Books, The MIT Press, edition 1, volume 1, number 026272040x, January.
- Krishnendu Ghosh Dastidar, 2006. "On Third-Degree Price Discrimination In Oligopoly," Manchester School, University of Manchester, vol. 74(2), pages 231-249, 03.
- Layson, Stephen, 1988. "Third-Degree Price Discrimination, Welfare and Profits: A Geometrical Analysis," American Economic Review, American Economic Association, vol. 78(5), pages 1131-32, December.
- Holmes, Thomas J, 1989. "The Effects of Third-Degree Price Discrimination in Oligopoly," American Economic Review, American Economic Association, vol. 79(1), pages 244-50, March.
- Layson, Stephen K, 1998. "Third-Degree Price Discrimination with Interdependent Demands," Journal of Industrial Economics, Wiley Blackwell, vol. 46(4), pages 511-24, December.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Akihisa Shibata).
If references are entirely missing, you can add them using this form.