IDEAS home Printed from https://ideas.repec.org/p/oxf/wpaper/371.html
   My bibliography  Save this paper

Competing for Contacts: Network Competition, Trade Intermediation and Fragmented Duopoly

Author

Listed:
  • Dimitra Petropoulou

Abstract

A two-sided, pair-wise matching model is developed to analyse the strategic interaction between two information intermediaries who compete in commission rates and network size, giving rise to a fragmented duopoly market structure. The model suggests that network competition between information intermediaries has a distinctive market structure, where intermediaries are monopolist service providers to some contacts but duopolists over contacts they share in their network overlap. The intermediaries` inability to price discriminate between the competitive and non-competitive market segments, gives rise to an undercutting game, which has no pure strategy Nash equilibrium. The incentive to randomise commission rates yields a mixed strategy Nash equilibrium. Finally, competition is affected by the technology of network development. The analysis shows that either a monopoly or a fragmented duopoly can prevail in equilibrium, depending on the network-building technology. Under convexity assumptions, both intermediaries invest in a network and compete over common matches, while randomising commission rates. In contrast, linear network development costs can only give rise to a monopolistic outcome.

Suggested Citation

  • Dimitra Petropoulou, 2007. "Competing for Contacts: Network Competition, Trade Intermediation and Fragmented Duopoly," Economics Series Working Papers 371, University of Oxford, Department of Economics.
  • Handle: RePEc:oxf:wpaper:371
    as

    Download full text from publisher

    File URL: http://www.economics.ox.ac.uk/materials/working_papers/paper371.pdf
    Download Restriction: no

    Other versions of this item:

    References listed on IDEAS

    as
    1. Caillaud, Bernard & Jullien, Bruno, 2001. "Competing cybermediaries," European Economic Review, Elsevier, vol. 45(4-6), pages 797-808, May.
    2. Michael R. Baye & Casper G. De Vries, 1992. "Mixed Strategy Trade Equilibria," Canadian Journal of Economics, Canadian Economics Association, vol. 25(2), pages 281-293, May.
    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. T. Randolph Beard & George S. Ford & R. Carter Hill, 2005. "Fragmented Duopoly: A Conceptual and Empirical Investigation," The Journal of Business, University of Chicago Press, vol. 78(6), pages 2377-2396, November.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Gabriel Felbermayr & Benjamin Jung, 2011. "Trade Intermediation and the Organization of Exporters," Review of International Economics, Wiley Blackwell, vol. 19(4), pages 634-648, September.

    More about this item

    Keywords

    International Trade; Pairwise Matching; Information Cost; Intermediation; Networks;

    JEL classification:

    • F10 - International Economics - - Trade - - - General
    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • L10 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - General

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:oxf:wpaper:371. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Anne Pouliquen). General contact details of provider: http://edirc.repec.org/data/sfeixuk.html .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.