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Negative intra-group externalities in two-sided markets


    (Université catholique de Louvain (UCL). Center for Operations Research and Econometrics (CORE))


Two types of agents interact on a pre-existing free platform. Agents value positively the presence of agents of the other type but may value negatively the presence of agents of their own type. We ask whether a new platform can find fees and subsidies so as to divert agents from the existing platform and make a profit. We show that this might be impossible if intra-group negative externalities are sufficiently (but not too) strong with respect to positive inter-group externalities.

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Paper provided by Université catholique de Louvain, Center for Operations Research and Econometrics (CORE) in its series CORE Discussion Papers with number 2007039.

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Date of creation: 01 Jun 2007
Date of revision:
Handle: RePEc:cor:louvco:2007039
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  1. Volker Nocke & Martin Peitz & Konrad Stahl, 2007. "Platform Ownership," Journal of the European Economic Association, MIT Press, vol. 5(6), pages 1130-1160, December.
  2. Garance Genicot & Debraj Ray, 2003. "Contracts and Externalities: How Things Fall Apart," Levine's Working Paper Archive 506439000000000235, David K. Levine.
  3. Anderson, Robert M. & Ellison, Glenn & Fudenberg, Drew, 2010. "Location choice in two-sided markets with indivisible agents," Games and Economic Behavior, Elsevier, vol. 69(1), pages 2-23, May.
  4. Mark Armstrong & Julian Wright, 2007. "Two-sided Markets, Competitive Bottlenecks and Exclusive Contracts," Economic Theory, Springer, vol. 32(2), pages 353-380, August.
  5. 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.
  6. Jean-Charles Rochet & Jean Tirole, 2014. "Platform Competition in Two-Sided Markets," CPI Journal, Competition Policy International, vol. 10.
  7. Michael D. Whinston & Ilya R. Segal, 2000. "Naked Exclusion: Comment," American Economic Review, American Economic Association, vol. 90(1), pages 296-309, March.
  8. Segal, Ilya, 2003. "Coordination and discrimination in contracting with externalities: divide and conquer?," Journal of Economic Theory, Elsevier, vol. 113(2), pages 147-181, December.
  9. Jean‐Charles Rochet & Jean Tirole, 2006. "Two‐sided markets: a progress report," RAND Journal of Economics, RAND Corporation, vol. 37(3), pages 645-667, 09.
  10. Jean-Charles Rochet & Jean Triole, 2002. "Platform competition in two sided markets," LSE Research Online Documents on Economics 24929, London School of Economics and Political Science, LSE Library.
  11. Doganoglu, Toker & Wright, Julian, 2010. "Exclusive dealing with network effects," International Journal of Industrial Organization, Elsevier, vol. 28(2), pages 145-154, March.
  12. Bruno Jullien, 2004. "Two-Sided Markets and Electronic Intermediaries," CESifo Working Paper Series 1345, CESifo Group Munich.
  13. Jullien, Bruno, 2001. "Competing with Network Externalities and Price Discrimination," CEPR Discussion Papers 2883, C.E.P.R. Discussion Papers.
  14. Fudenberg, Drew & Ellison, Glenn, 2003. "Knife-Edge or Plateau: When Do Market Models Tip?," Scholarly Articles 3160493, Harvard University Department of Economics.
  15. 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.
  16. Wright, Julian, 2003. "Optimal card payment systems," European Economic Review, Elsevier, vol. 47(4), pages 587-612, August.
  17. Mark Armstrong, 2006. "Competition in two‐sided markets," RAND Journal of Economics, RAND Corporation, vol. 37(3), pages 668-691, 09.
  18. AMIR, Rabah, 2003. "Market structure, scale economies and industry performance," CORE Discussion Papers 2003065, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  19. Rasmusen, Eric B & Ramseyer, J Mark & Wiley, John S, Jr, 1991. "Naked Exclusion," American Economic Review, American Economic Association, vol. 81(5), pages 1137-45, December.
  20. Jean-Charles Rochet & Jean Tirole, 2002. "Cooperation Among Competitors: Some Economics Of Payment Card Associations," RAND Journal of Economics, The RAND Corporation, vol. 33(4), pages 549-570, Winter.
  21. Jorge A, Ferrando & Jean J, Gabszewicz & Didier Laussel & Nathalie Sonnac, 2004. "Two-Sided Network Effects and Competition : An Application to Media Industries," Working Papers 2004-09, Centre de Recherche en Economie et Statistique.
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