IDEAS home Printed from https://ideas.repec.org/p/cep/cepdps/dp0854.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 monopolistic 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, 2008. "Competing for Contacts: Network Competition, Trade Intermediation and Fragmented Duopoly," CEP Discussion Papers dp0854, Centre for Economic Performance, LSE.
  • Handle: RePEc:cep:cepdps:dp0854
    as

    Download full text from publisher

    File URL: https://cep.lse.ac.uk/pubs/download/dp0854.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Caillaud, Bernard & Jullien, Bruno, 2003. "Chicken & Egg: Competition among Intermediation Service Providers," RAND Journal of Economics, The RAND Corporation, vol. 34(2), pages 309-328, Summer.
    2. Caillaud, Bernard & Jullien, Bruno, 2001. "Competing cybermediaries," European Economic Review, Elsevier, vol. 45(4-6), pages 797-808, 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.
    5. 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.
    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.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Doh-Shin Jeon & Nikrooz Nasr, 2016. "News Aggregators and Competition among Newspapers on the Internet," American Economic Journal: Microeconomics, American Economic Association, vol. 8(4), pages 91-114, November.
    2. Hanna Halaburda & Yaron Yehezkel, 2019. "Focality advantage in platform competition," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 28(1), pages 49-59, January.
    3. Jullien, Bruno & Pavan, Alessandro & Rysman, Marc, 2021. "Two-sided Markets, Pricing, and Network Effects," TSE Working Papers 21-1238, Toulouse School of Economics (TSE).
    4. Paul Belleflamme & Martin Peitz, 2018. "Platforms and network effects," Chapters, in: Luis C. Corchón & Marco A. Marini (ed.), Handbook of Game Theory and Industrial Organization, Volume II, chapter 11, pages 286-317, Edward Elgar Publishing.
    5. Aoyagi, Masaki, 2018. "Bertrand competition under network externalities," Journal of Economic Theory, Elsevier, vol. 178(C), pages 517-550.
    6. Jørgen Veisdal, 2020. "The dynamics of entry for digital platforms in two-sided markets: a multi-case study," Electronic Markets, Springer;IIM University of St. Gallen, vol. 30(3), pages 539-556, September.
    7. Calvano, Emilio & Polo, Michele, 2021. "Market power, competition and innovation in digital markets: A survey," Information Economics and Policy, Elsevier, vol. 54(C).
    8. Belleflamme,Paul & Peitz,Martin, 2015. "Industrial Organization," Cambridge Books, Cambridge University Press, number 9781107687899.
    9. Juan Manuel Sanchez‐Cartas & Gonzalo León, 2021. "Multisided Platforms And Markets: A Survey Of The Theoretical Literature," Journal of Economic Surveys, Wiley Blackwell, vol. 35(2), pages 452-487, April.
    10. Yuan, Michael Y., 2008. "The effects of barriers to entry on monopolistic intermediary online services: The case of a digital library," Socio-Economic Planning Sciences, Elsevier, vol. 42(1), pages 56-73, March.
    11. Estelle Malavolti, 2016. "Single Till or Dual Till at airports: a Two-Sided Market Analysis," Post-Print hal-01406372, HAL.
    12. Glenn Ellison & Drew Fudenberg & Markus Möbius, 2004. "Competing Auctions," Journal of the European Economic Association, MIT Press, vol. 2(1), pages 30-66, March.
    13. Renato Gomes & Alessandro Pavan, 2013. "Cross-Subsidization and Matching Design," Discussion Papers 1559, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
    14. Hanna Hałaburda & Yaron Yehezkel, 2016. "The Role of Coordination Bias in Platform Competition," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 25(2), pages 274-312, April.
    15. Claude Crampes & Carole Haritchabalet & Bruno Jullien, 2009. "Advertising, Competition And Entry In Media Industries," Journal of Industrial Economics, Wiley Blackwell, vol. 57(1), pages 7-31, March.
    16. Howell, Bronwyn, 2006. "Unveiling 'Invisible Hands': Two-Sided Platforms in Health Care Markets," Working Paper Series 18936, Victoria University of Wellington, The New Zealand Institute for the Study of Competition and Regulation.
    17. Yannis Bakos & Hanna Halaburda, 2022. "Overcoming the Coordination Problem in New Marketplaces via Cryptographic Tokens," Information Systems Research, INFORMS, vol. 33(4), pages 1368-1385, December.
    18. Zhao, Yuntong & Du, Yushen, 2021. "Technical standard competition: An ecosystem-view analysis based on stochastic evolutionary game theory," Technology in Society, Elsevier, vol. 67(C).
    19. Gabriel Garber & Márcio Issao Nakane, 2016. "Commercial platforms with heterogeneous participants," Working Papers, Department of Economics 2016_02, University of São Paulo (FEA-USP).
    20. Bruno Jullien, 2005. "Two-sided Markets and Electronic Intermediaries," CESifo Economic Studies, CESifo Group, vol. 51(2-3), pages 233-260.

    More about this item

    Keywords

    International Trade; Pairwise Matching; Information Cost; Intermediation; Networks;
    All these keywords.

    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:cep:cepdps:dp0854. See general information about how to correct material in RePEc.

    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 bibliographic 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.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: the person in charge (email available below). General contact details of provider: https://cep.lse.ac.uk/_new/publications/discussion-papers/ .

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

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.