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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.

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Article provided by Elsevier in its journal European Economic Review.

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

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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

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  1. Gehrig, Thomas, 1993. "Intermediation in Search Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 2(1), pages 97-120, Spring.
  2. Caplin, A. & Nalebuff, B., 1989. "Aggregation And Imperfect Competition: On The Existence Of Equilibrium," Discussion Papers 1989_30, Columbia University, Department of Economics.
  3. 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.
  4. 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.
  5. Anthony Dukes, 2004. "The Adverstising Market in a Product Oligopoly," Journal of Industrial Economics, Wiley Blackwell, vol. 52(3), pages 327-348, 09.
  6. John Rust & George Hall, 2001. "Middle Men Versus Market Makers: A Theory of Competitive Exchange," Cowles Foundation Discussion Papers 1299, Cowles Foundation for Research in Economics, Yale University.
  7. Paul Belleflamme & Eric Toulemonde, 2009. "Negative Intra-Group Externalities In Two-Sided Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 50(1), pages 245-272, 02.
  8. Schmalensee, Richard, 2002. "Payment Systems and Interchange Fees," Journal of Industrial Economics, Wiley Blackwell, vol. 50(2), pages 103-22, June.
  9. 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.
  10. Wright, Julian, 2003. "Optimal card payment systems," European Economic Review, Elsevier, vol. 47(4), pages 587-612, August.
  11. Yavas, Abdullah, 1994. "Middlemen in Bilateral Search Markets," Journal of Labor Economics, University of Chicago Press, vol. 12(3), pages 406-29, July.
  12. Anthony Dukes & Esther Gal–Or, 2003. "Negotiations and Exclusivity Contracts for Advertising," Marketing Science, INFORMS, vol. 22(2), pages 222-245, November.
  13. Abdullah Yavaş, 1996. "Search and Trading in Intermediated Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 5(2), pages 195-216, 06.
  14. repec:cup:cbooks:9780521736602 is not listed on IDEAS
  15. 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.
  16. 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).
  17. Spulber, Daniel F, 1996. "Market Making by Price-Setting Firms," Review of Economic Studies, Wiley Blackwell, vol. 63(4), pages 559-80, October.
  18. Jean-Charles Rochet & Jean Triole, 2002. "Platform Competition in Two Sided Markets," FMG Discussion Papers dp409, Financial Markets Group.
  19. repec:rje:randje:v:37:y:2006:3:p:645-667 is not listed on IDEAS
  20. Mark Armstrong & Julian Wright, 2007. "Two-sided Markets, Competitive Bottlenecks and Exclusive Contracts," Economic Theory, Springer, vol. 32(2), pages 353-380, August.
  21. 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.
  22. Caillaud, Bernard & Jullien, Bruno, 2001. "Competing cybermediaries," European Economic Review, Elsevier, vol. 45(4-6), pages 797-808, May.
  23. Simon Loertscher, 2005. "Horizontally Differentiated Market Makers," Diskussionsschriften dp0510, Universitaet Bern, Departement Volkswirtschaft.
  24. Perloff, Jeffrey M & Salop, Steven, 1984. "Equilibrium with product differentiation," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt4cq0m6s3, Department of Agricultural & Resource Economics, UC Berkeley.
  25. 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.
  26. Julian Wright, 2004. "The Determinants of Optimal Interchange Fees in Payment Systems," Journal of Industrial Economics, Wiley Blackwell, vol. 52(1), pages 1-26, 03.
  27. 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.
  28. 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).
  29. 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.
  30. Marc Rysman, 2004. "Competition Between Networks: A�Study of the Market for Yellow�Pages," Review of Economic Studies, Wiley Blackwell, vol. 71(2), pages 483-512, 04.
  31. repec:rje:randje:v:37:y:2006:3:p:720-737 is not listed on IDEAS
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