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Monopolies in Two-Sided Markets: Comparative Statics and Identification

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  • Weyl, E. Glen

Abstract

Many models of monopoly in two-sided markets have been proposed (Rochet and Tirole, 2006), but little is known about them. I provide a full set of comparative statics for three models, one that generalizes that of Rochet and Tirole (2003), a second that generalizes Armstrong (2006) and a third that fuses the two models. This answers a number of questions central to the theoretical literature, such as the effects of market power and price controls and the relationship between different models. I also show how, given exogenous cost variations, these models can be almost fully (locally) identified (e.g. market power and predatory pricing), tested and distinguished from one another. I highlight applications of the results to a wide variety of theoretical, empirical and policy questions, including merger analysis.

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Bibliographic Info

Paper provided by Department of Economics, Institute for Business and Economic Research, UC Berkeley in its series Department of Economics, Working Paper Series with number qt69c9c56z.

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Date of creation: 31 Oct 2008
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Handle: RePEc:cdl:econwp:qt69c9c56z

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  1. Jullien, Bruno, 2008. "Price Skewness and Competition in Multi-Sided Markets," IDEI Working Papers 504, Institut d'Économie Industrielle (IDEI), Toulouse.
  2. Matthew Gentzkow, 2007. "Valuing New Goods in a Model with Complementarity: Online Newspapers," American Economic Review, American Economic Association, vol. 97(3), pages 713-744, June.
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  10. Ambrus, Attila & Argenziano, Rossella, 2009. "Asymmetric Networks in Two-Sided Markets," Scholarly Articles 3204916, Harvard University Department of Economics.
  11. Gaudeul, Alexandre & Jullien, Bruno, 2005. "E-Commerce, Two-Sided Markets and Info-Mediation," IDEI Working Papers 380, Institut d'Économie Industrielle (IDEI), Toulouse.
  12. David S. Evans & Andrei Hagiu & Richard Schmalensee, 2008. "Invisible Engines: How Software Platforms Drive Innovation and Transform Industries," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262550687, December.
  13. Berry, Steven & Levinsohn, James & Pakes, Ariel, 1995. "Automobile Prices in Market Equilibrium," Econometrica, Econometric Society, vol. 63(4), pages 841-90, July.
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  16. Jean Tirole, 1988. "The Theory of Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262200716, December.
  17. Sijm, J. & Neuhoff, K. & Chen, Y., 2006. "CO2 cost pass through and windfall profits in the power sector," Cambridge Working Papers in Economics 0639, Faculty of Economics, University of Cambridge.
  18. 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.
  19. Josh Lerner & Jean Tirole, 2008. "Public Policy toward Patent Pools," NBER Chapters, in: Innovation Policy and the Economy, Volume 8, pages 157-186 National Bureau of Economic Research, Inc.
  20. 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.
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