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Market Delineation and Product Differentiation

Author

Listed:
  • Jonas Häckner
Abstract
The purpose of this study is to analyse theoretically the implications of applying the procedure for market delineation used by competitions authorities in the EU and in the US. Specifically, we investigate the circumstances under which the procedure will lead to positive relation between actual market power and the assessed degree of market dominance. Another objective is to test whether the procedure is neutral in the sense that it does not discriminate among different sources of market power. In order to address these issues, we develop an oligopoly model that allows for an arbitrary number of firms as well as for vertical an horizontal product differentiation. It is found that the correlation between actual market power and assessed market dominance is likely to be weak and that the procedure discriminates strongly among different sources of market power.
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Suggested Citation

  • Jonas Häckner, 2001. "Market Delineation and Product Differentiation," Journal of Industry, Competition and Trade, Springer, vol. 1(1), pages 81-99, March.
    • Handle: RePEc:kap:jincot:v:1:y:2001:i:1:p:81-99
    DOI: 10.1023/A:1011528928507
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    References listed on IDEAS

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    1. Avinash Dixit, 1979. "A Model of Duopoly Suggesting a Theory of Entry Barriers," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 20-32, Spring.
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    4. Hackner, Jonas, 2003. "Vertical Integration and Competition Policy," Journal of Regulatory Economics, Springer, vol. 24(2), pages 213-222, September.
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    6. Froeb, L.M. & Werden, G.J., 1991. "Correlation, Causality, and all that Jazz: The Inherent Shortcomings of Price Tests for Antitrust Market Delineation," Papers 91-6, U.S. Department of Justice - Antitrust Division.
    7. Nirvikar Singh & Xavier Vives, 1984. "Price and Quantity Competition in a Differentiated Duopoly," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 546-554, Winter.
    8. Baker, Jonathan B & Baresnahan, Timothy F, 1985. "The Gains from Merger or Collusion in Product-differentiated Industries," Journal of Industrial Economics, Wiley Blackwell, vol. 33(4), pages 427-444, June.
    9. Anderson, Simon P & De Palma, Andre, 1992. "The Logit as a Model of Product Differentiation," Oxford Economic Papers, Oxford University Press, vol. 44(1), pages 51-67, January.
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    11. Hay, George A & Werden, Gregory J, 1993. "Horizontal Mergers: Law, Policy, and Economics," American Economic Review, American Economic Association, vol. 83(2), pages 173-177, May.
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    Cited by:

    1. V. Bageri & Y. Katsoulacos, 2017. "The market power requirement in antitrust enforcement and its usefulness," Economia e Politica Industriale: Journal of Industrial and Business Economics, Springer;Associazione Amici di Economia e Politica Industriale, vol. 44(2), pages 145-159, June.

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    More about this item

    Keywords

    market delineation; competition policy; product differentiation;
    All these keywords.

    JEL classification:

    • K40 - Law and Economics - - Legal Procedure, the Legal System, and Illegal Behavior - - - General
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General

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