IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Log in (now much improved!) to save this article

Platform intermediation in a market for differentiated products

  • Galeotti, Andrea
  • Moraga-González, José Luis

We study a two-sided market where a platform attracts firms selling differentiated products and buyers interested in those products. In the subgame perfect equilibrium of the game, the platform fully internalises the network externalities present in the market and firms and consumers all participate in the platform with probability one. The monopolist intermediary extracts all the economic rents generated in the market, except when firms and consumers can trade outside the platform, in which case consumers obtain a rent that corresponds to the utility they would get if they did trade outside the platform. The market allocation is constraint-efficient in the sense that the monopoly platform does not introduce distortions over and above those arising from the market power of the differentiated product sellers. An increase in the number of retailers increases the amount of variety in the platform but at the same time increases competition. As a result, the platform lowers the firm fees and raises the consumer charges. In contrast, an increase in the extent of product differentiation raises the value of the platform for the consumers but weakens competition. In this case, the platform raises both the charge to the consumers and the fee for the firms.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL: http://www.sciencedirect.com/science/article/pii/S0014-2921(08)00081-0
Download Restriction: Full text for ScienceDirect subscribers only

As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

Article provided by Elsevier in its journal European Economic Review.

Volume (Year): 53 (2009)
Issue (Month): 4 (May)
Pages: 417-428

as
in new window

Handle: RePEc:eee:eecrev:v:53:y:2009:i:4:p:417-428
Contact details of provider: Web page: http://www.elsevier.com/locate/eer

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

as in new window
  1. Anthony Dukes, 2004. "The Adverstising Market in a Product Oligopoly," Journal of Industrial Economics, Wiley Blackwell, vol. 52(3), pages 327-348, 09.
  2. John Rust & George Hall, 2002. "Middlemen versus Market Makers: A Theory of Competitive Exchange," NBER Working Papers 8883, National Bureau of Economic Research, Inc.
  3. Andrew Caplin & Barry Nalebuff, 1990. "Aggregation and Imperfect Competition: On the Existence of Equilibrium," Cowles Foundation Discussion Papers 937, Cowles Foundation for Research in Economics, Yale University.
  4. BELLEFLAMME, Paul & TOULEMONDE, Eric, 2004. "B2B marketplaces : Emergence and entry," CORE Discussion Papers 2004078, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  5. Simon P. Anderson & Regis Renault, 1999. "Pricing, product diversity, and search costs: a Bertrand-Chamberlin-Diamond model," Virginia Economics Online Papers 335, University of Virginia, Department of Economics.
  6. Jean-Charles Rochet & Jean Triole, 2002. "Platform Competition in Two Sided Markets," FMG Discussion Papers dp409, Financial Markets Group.
  7. Caillaud, Bernard & Jullien, Bruno, 2001. "Competing cybermediaries," European Economic Review, Elsevier, vol. 45(4-6), pages 797-808, May.
  8. Jeffrey M. Perloff & Steven C. Salop, 1985. "Equilibrium with Product Differentiation," Review of Economic Studies, Oxford University Press, vol. 52(1), pages 107-120.
  9. Gehrig, Thomas, 1993. "Intermediation in Search Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 2(1), pages 97-120, Spring.
  10. Kaiser, Ulrich & Wright, Julian, 2004. "Price Structure in Two-sided Markets: Evidence from the Magazine Industry?," ZEW Discussion Papers 04-80, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  11. Esther Gal-Or & Anthony Dukes, 2003. "Minimum Differentiation in Commercial Media Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 12(3), pages 291-325, 09.
  12. Fingleton, John, 1997. "Competition among Middlemen When Buyers and Sellers Can Trade Directly," Journal of Industrial Economics, Wiley Blackwell, vol. 45(4), pages 405-27, December.
  13. Mark Armstrong, 2005. "Competition in Two-Sided Markets," Industrial Organization 0505009, EconWPA.
  14. 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).
  15. Julian Wright, 2001. "The Determinants of Optimal Interchange Fees in Payment Systems," Industrial Organization 0108001, EconWPA.
  16. Stahl, Dale O, II, 1988. "Bertrand Competition for Inputs and Walrasian Outcomes," American Economic Review, American Economic Association, vol. 78(1), pages 189-201, March.
  17. Mark Armstrong & Julian Wright, 2007. "Two-sided Markets, Competitive Bottlenecks and Exclusive Contracts," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 32(2), pages 353-380, August.
  18. BELLEFLAMME, Paul & TOULEMONDE, Eric, 2007. "Negative intra-group externalities in two-sided markets," CORE Discussion Papers 2007039, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  19. Michael R. Baye & John Morgan, 2001. "Information Gatekeepers on the Internet and the Competitiveness of Homogeneous Product Markets," American Economic Review, American Economic Association, vol. 91(3), pages 454-474, June.
  20. Simon Loertscher, 2005. "Horizontally Differentiated Market Makers," Diskussionsschriften dp0510, Universitaet Bern, Departement Volkswirtschaft.
  21. Richard Schmalensee, 2001. "Payment Systems and Interchange Fees," NBER Working Papers 8256, National Bureau of Economic Research, Inc.
  22. repec:rje:randje:v:37:y:2006:3:p:720-737 is not listed on IDEAS
  23. repec:rje:randje:v:37:y:2006:3:p:645-667 is not listed on IDEAS
  24. Anthony Dukes & Esther Gal–Or, 2003. "Negotiations and Exclusivity Contracts for Advertising," Marketing Science, INFORMS, vol. 22(2), pages 222-245, November.
  25. 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.
  26. Daniel F. Spulber, 1996. "Market Making by Price-Setting Firms," Review of Economic Studies, Oxford University Press, vol. 63(4), pages 559-580.
  27. Abdullah Yavaş, 1996. "Search and Trading in Intermediated Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 5(2), pages 195-216, 06.
  28. Nocke, Volker & Peitz, Martin & Stahl, Konrad, 2004. "Platform Ownership," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 16, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  29. Yavas, Abdullah, 1994. "Middlemen in Bilateral Search Markets," Journal of Labor Economics, University of Chicago Press, vol. 12(3), pages 406-29, July.
  30. Wright, Julian, 2003. "Optimal card payment systems," European Economic Review, Elsevier, vol. 47(4), pages 587-612, August.
  31. Marc Rysman, 2004. "Competition Between Networks: A Study of the Market for Yellow Pages," Review of Economic Studies, Oxford University Press, vol. 71(2), pages 483-512.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:eee:eecrev:v:53:y:2009:i:4:p:417-428. 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: (Shamier, Wendy)

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 references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link 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 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.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.