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Collusion and welfare in the case of a horizontally differentiated duopoly with network compatibility

Author

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  • Tsuyoshi Toshimitsu

    (School of Economics, Kwansei Gakuin University)

Abstract

Based on a horizontally differentiated duopoly model with network externalities, in which we focus on the role of compatibility between the products, we consider the effect of collusion on social welfare. We demonstrate that collusion improves social welfare, compared to the case of noncooperative Cournot competition, if the level of compatibility between the products under collusion is sufficiently large, given that a network externality is strong. In this case, the collusion is sustainable.

Suggested Citation

  • Tsuyoshi Toshimitsu, 2017. "Collusion and welfare in the case of a horizontally differentiated duopoly with network compatibility," Discussion Paper Series 163, School of Economics, Kwansei Gakuin University, revised Jun 2017.
    • Handle: RePEc:kgu:wpaper:163
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    File URL: http://192.218.163.163/RePEc/pdf/kgdp163.pdf
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    References listed on IDEAS

    as
    1. Lambertini, Luca & Poddar, Sougata & Sasaki, Dan, 1998. "Standardization and the stability of collusion," Economics Letters, Elsevier, vol. 58(3), pages 303-310, March.
    2. Pal, Rupayan & Scrimitore, Marcella, 2016. "Tacit collusion and market concentration under network effects," Economics Letters, Elsevier, vol. 145(C), pages 266-269.
    3. Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-440, June.
    4. Shy,Oz, 2001. "The Economics of Network Industries," Cambridge Books, Cambridge University Press, number 9780521800952, January.
    5. Rasch, Alexander, 2017. "Compatibility, network effects, and collusion," Economics Letters, Elsevier, vol. 151(C), pages 39-43.
    6. Grajek, Michal, 2010. "Estimating network effects and compatibility: Evidence from the Polish mobile market," Information Economics and Policy, Elsevier, vol. 22(2), pages 130-143, May.
    7. Song, Ruichao & Wang, Leonard F.S., 2017. "Collusion in a differentiated duopoly with network externalities," Economics Letters, Elsevier, vol. 152(C), pages 23-26.
    8. Economides, Nicholas, 1996. "Network externalities, complementarities, and invitations to enter," European Journal of Political Economy, Elsevier, vol. 12(2), pages 211-233, September.
    9. Neil Gandal, 2002. "Compatibility, Standardization, and Network Effects: Some Policy Implications," Oxford Review of Economic Policy, Oxford University Press and Oxford Review of Economic Policy Limited, vol. 18(1), pages 80-91, Spring.
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    Cited by:

    1. Tsuyoshi Toshimitsu, 2018. "Tacit collusion and its welfare effect in a network product market," Economics Bulletin, AccessEcon, vol. 38(4), pages 1787-1795.

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    More about this item

    Keywords

    collusion; network externality; compatibility; horizontally differentiated duopoly; welfare;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D62 - Microeconomics - - Welfare Economics - - - Externalities
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices

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