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Platform Competition with Endogenous Multihoming

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  • Roberto Roson

    (Università Ca’ Foscari di Venezia)

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    Abstract

    A model of two-sided market (for credit cards) is introduced and discussed. In this model, agents can join none, one, or more than one platform (multihoming), depending on access prices and the choices made by agents on the opposite market side. Although emerging multihoming patterns are, clearly, one aspect of equilibrium in a two-sided market, this issue has not yet been thoroughly addressed in the literature. This paper provides a general theoretical framework, in which homing partitions are conceived as one aspect of market equilibrium, rather than being set ex-ante, through ad-hoc assumptions. The emergence of a specific equilibrium partition is a consequence of: (1) the structure of costs and benefits, (2) the degree and type of heterogeneity among agents, (3) the intensity of platform competition.

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    Bibliographic Info

    Paper provided by Fondazione Eni Enrico Mattei in its series Working Papers with number 2005.20.

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    Date of creation: Jan 2005
    Date of revision:
    Handle: RePEc:fem:femwpa:2005.20

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    Related research

    Keywords: Two-sided markets; Network externalities; Standards; Platforms; Multihoming;

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    References

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    1. Rochet, Jean-Charles & Tirole, Jean, 2003. "Platform Competition in Two-Sided Markets," Open Access publications from University of Toulouse 1 Capitole http://neeo.univ-tlse1.fr, University of Toulouse 1 Capitole.
    2. Mark Armstrong, 2006. "Competition in two‐sided markets," RAND Journal of Economics, RAND Corporation, vol. 37(3), pages 668-691, 09.
    3. Marc Rysman, 2006. "An Empirical Analysis of Payment Card Usage," Boston University - Department of Economics - Working Papers Series WP2006-002, Boston University - Department of Economics.
    4. Sujit Chakravorti & Roberto Roson, 2004. "Platform competition in two-sided markets: the case of payment networks," Working Paper Series WP-04-09, Federal Reserve Bank of Chicago.
    5. Benjamin E. Hermalin & Michael L. Katz, 2006. "Your network or mine? The economics of routing rules," RAND Journal of Economics, RAND Corporation, vol. 37(3), pages 692-719, 09.
    6. Caillaud, Bernard & Jullien, Bruno, 2003. " Chicken & Egg: Competition among Intermediation Service Providers," RAND Journal of Economics, The RAND Corporation, vol. 34(2), pages 309-28, Summer.
    7. Graeme Guthrie & Julian Wright, 2003. "Competing Payment Schemes," Departmental Working Papers wp0311, National University of Singapore, Department of Economics.
    8. Rochet, Jean-Charles & Tirole, Jean, 2006. "Two-Sided Markets: A Progress Report," Open Access publications from University of Toulouse 1 Capitole http://neeo.univ-tlse1.fr, University of Toulouse 1 Capitole.
    9. Mark Armstrong & Julian Wright, 2007. "Two-sided Markets, Competitive Bottlenecks and Exclusive Contracts," Economic Theory, Springer, vol. 32(2), pages 353-380, August.
    10. Fabio M. Manenti & Ernesto Somma, 2002. "Plastic Clashes: Competition among Closed and Open Systems in the Credit Card Industry," Industrial Organization 0211012, EconWPA.
    11. Schiff, Aaron, 2003. "Open and closed systems of two-sided networks," Information Economics and Policy, Elsevier, vol. 15(4), pages 425-442, December.
    12. GABSZEWICZ, Jean & WAUTHY, Xavier, 2004. "Two-sided markets and price competition with multi-homing," CORE Discussion Papers 2004030, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
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    Cited by:
    1. Alexander Rasch, 2007. "Platform competition with partial multihoming under differentiation: a note," Economics Bulletin, AccessEcon, vol. 12(7), pages 1-8.

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