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Third-degree price discrimination, quality choice, and welfare

Author

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  • Ikeda, Takeshi
  • Toshimitsu, Tsuyoshi

Abstract

Employing an endogenous quality choice model, we reconsider the effect on welfare of monopolistic third-degree price discrimination. We prove that price discrimination always enhances welfare, mainly because the quality improvement owing to price discrimination increases consumer surplus. Moreover, we show that third-degree price discrimination benefits all parties, including consumers in the higher priced market if the preference differences between markets are sufficiently large.

Suggested Citation

  • Ikeda, Takeshi & Toshimitsu, Tsuyoshi, 2010. "Third-degree price discrimination, quality choice, and welfare," Economics Letters, Elsevier, vol. 106(1), pages 54-56, January.
  • Handle: RePEc:eee:ecolet:v:106:y:2010:i:1:p:54-56
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    References listed on IDEAS

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    1. Malueg, David A. & Schwartz, Marius, 1994. "Parallel imports, demand dispersion, and international price discrimination," Journal of International Economics, Elsevier, vol. 37(3-4), pages 167-195, November.
    2. 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.
    3. Schwartz, Marius, 1990. "Third-Degree Price Discrimination and Output: Generalizing a Welfare Result," American Economic Review, American Economic Association, vol. 80(5), pages 1259-1262, December.
    4. Thisse, Jacques-Francois & Vives, Xavier, 1988. "On the Strategic Choice of Spatial Price Policy," American Economic Review, American Economic Association, vol. 78(1), pages 122-137, March.
    5. Varian, Hal R, 1985. "Price Discrimination and Social Welfare," American Economic Review, American Economic Association, vol. 75(4), pages 870-875, September.
    6. Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
    7. Liu, Qihong & Serfes, Konstantinos, 2005. "Imperfect price discrimination in a vertical differentiation model," International Journal of Industrial Organization, Elsevier, vol. 23(5-6), pages 341-354, June.
    8. Takeshi Ikeda & Tatsuhiko Nariu, 2009. "Third-Degree Price Discrimination in the Presence of Asymmetric Consumption Externalities," Journal of Industry, Competition and Trade, Springer, vol. 9(3), pages 251-261, September.
    9. Schmalensee, Richard, 1981. "Output and Welfare Implications of Monopolistic Third-Degree Price Discrimination," American Economic Review, American Economic Association, vol. 71(1), pages 242-247, March.
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    Cited by:

    1. repec:bla:worlde:v:40:y:2017:i:8:p:1531-1546 is not listed on IDEAS
    2. Nguyen, Xuan, 2014. "Monopolistic third-degree price discrimination under vertical product differentiation," Economics Letters, Elsevier, vol. 125(2), pages 153-155.
    3. repec:kap:jeczfn:v:120:y:2017:i:3:d:10.1007_s00712-016-0508-2 is not listed on IDEAS
    4. Takanori Adachi & Noriaki Matsushima, 2014. "The Welfare Effects Of Third-Degree Price Discrimination In A Differentiated Oligopoly," Economic Inquiry, Western Economic Association International, vol. 52(3), pages 1231-1244, July.
    5. repec:bla:ecinqu:v:55:y:2017:i:1:p:339-351 is not listed on IDEAS
    6. Ann Marsden & Hugh Sibly, 2011. "An Integrated Approach to Teaching Price Discrimination," International Review of Economic Education, Economics Network, University of Bristol, vol. 10(2), pages 75-90.
    7. Tsuyoshi Toshimitsu, 2014. "Economic Integration, Quality Choice, and Monopoly," Discussion Paper Series 118, School of Economics, Kwansei Gakuin University, revised May 2014.
    8. repec:bpj:bejtec:v:18:y:2018:i:1:p:6:n:11 is not listed on IDEAS
    9. Francisco Galera & José Luis à lvarez & Juan Carlos Molero, 2012. "Technology Choice and Third Degree Price Discrimination in a Monopoly," Faculty Working Papers 15/12, School of Economics and Business Administration, University of Navarra.
    10. Francisco Galera & Pedro Mendi & Juan Carlos Molero, 2017. "Quality Differences, Third-Degree Price Discrimination, And Welfare," Economic Inquiry, Western Economic Association International, vol. 55(1), pages 339-351, January.

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