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Knife-Edge Or Plateau: When Do Market Models Tip?

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Author Info
Glenn Ellison
Drew Fudenberg

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Abstract

This paper studies whether agents must agglomerate at a single location in a class of models of two-sided interaction. In these models there is an increasing returns effect that favors agglomeration, but also a crowding or market-impact effect that makes agents prefer to be in a market with fewer agents of their own type. We show that such models do not tip in the way the term is commonly used. Instead, they have a broad plateau of equilibria with two active markets, and tipping occurs only when one market is below a critical size threshold. Our assumptions are fairly weak, and are satisfied in Krugman's model of labor market pooling, a heterogeneous-agent version of Pagano's asset market model, and Ellison, Fudenberg, and Möbius' model of competing auctions. © 2001 the President and Fellows of Harvard College and the Massachusetts Institute of Technology

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Article provided by MIT Press in its journal The Quarterly Journal of Economics.

Volume (Year): 118 (2003)
Issue (Month): 4 (November)
Pages: 1249-1278
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Handle: RePEc:tpr:qjecon:v:118:y:2003:i:4:p:1249-1278

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  1. Fujita, Masahisa, 1988. "A monopolistic competition model of spatial agglomeration : Differentiated product approach," Regional Science and Urban Economics, Elsevier, vol. 18(1), pages 87-124, February. [Downloadable!] (restricted)
  2. Guy Dumais & Glenn Ellison & Edward L. Glaeser, 2002. "Geographic Concentration As A Dynamic Process," The Review of Economics and Statistics, MIT Press, vol. 84(2), pages 193-204, May. [Downloadable!] (restricted)
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  3. Glenn Ellison & Edward L. Glaeser, 1994. "Geographic Concentration in U.S. Manufacturing Industries: A Dartboard Approach," NBER Working Papers 4840, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  4. Glenn Allison & Drew Fudenberg, 2002. "Competing Auctions," Harvard Institute of Economic Research Working Papers 1960, Harvard - Institute of Economic Research. [Downloadable!]
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  5. Gehrig, Thomas, 1998. "Competing markets," European Economic Review, Elsevier, vol. 42(2), pages 277-310, February. [Downloadable!] (restricted)
  6. Henderson, J V, 1974. "The Sizes and Types of Cities," American Economic Review, American Economic Association, vol. 64(4), pages 640-56, September. [Downloadable!] (restricted)
  7. Klemperer, Paul D & Meyer, Margaret A, 1989. "Supply Function Equilibria in Oligopoly under Uncertainty," Econometrica, Econometric Society, vol. 57(6), pages 1243-77, November. [Downloadable!] (restricted)
  8. Kyle, Albert S, 1989. "Informed Speculation with Imperfect Competition," Review of Economic Studies, Blackwell Publishing, vol. 56(3), pages 317-55, July. [Downloadable!] (restricted)
  9. Vayanos, Dimitri, 1999. "Strategic Trading and Welfare in a Dynamic Market," Review of Economic Studies, Blackwell Publishing, vol. 66(2), pages 219-54, April. [Downloadable!] (restricted)
  10. Pagano, Marco, 1989. "Trading Volume and Asset Liquidity," The Quarterly Journal of Economics, MIT Press, vol. 104(2), pages 255-74, May. [Downloadable!] (restricted)
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  11. Krugman, Paul, 1991. "Increasing Returns and Economic Geography," Journal of Political Economy, University of Chicago Press, vol. 99(3), pages 483-99, June. [Downloadable!] (restricted)
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Cited by:
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  1. Bochet Olivier & Storcken Ton, 2006. "Maximal Domains for Strategy-Proof or Maskin Monotonic Choice Rules," Research Memoranda 003, Maastricht : METEOR, Maastricht Research School of Economics of Technology and Organization. [Downloadable!]
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  2. Jan Eeckhout, 2004. "Gibrat's Law for (All) Cities," American Economic Review, American Economic Association, vol. 94(5), pages 1429-1451, December. [Downloadable!] (restricted)
  3. Tamar Kugler & Zvika Neeman & Nir Vulkan, 2003. "Markets Versus Negotiations: An Experimental Investigation," Discussion Paper Series dp319, Center for Rationality and Interactive Decision Theory, Hebrew University, Jerusalem. [Downloadable!]
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  4. Marcus Berliant & Fan- chin Kung, 2004. "The Indeterminacy of Equilibrium City Formation under Monopolistic Competition and Increasing Returns," Urban/Regional 0407011, EconWPA, revised 29 Apr 2005. [Downloadable!]
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  5. Marc Rysman, 2003. "Differentiation Across Standards and Adoption Failure in 56K Modems," Working Papers 03-12, NET Institute, revised Dec 2003. [Downloadable!]
  6. Simon Loertscher, 2005. "Market making oligopoly," Diskussionsschriften dp0512, Universitaet Bern, Departement Volkswirtschaft. [Downloadable!]
  7. BOGOMOLNAIA, Anna & LE BRETON, Michel & SAVVATEEV, Alexei & WEBER, Shlomo, 2006. "Heterogeneity Gap in the Stable Jurisdiction Structures," IDEI Working Papers 412, Institut d'Économie Industrielle (IDEI), Toulouse. [Downloadable!]
  8. Angelique Augereau & Shane Greenstein & Marc Rysman, 2004. "Coordination vs. Differentiation in a Standards War: 56K Modems," NBER Working Papers 10334, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  9. Attila Ambrus & Rossella Argenziano, 2004. "Network Markets and Consumers Coordination," CESifo Working Paper Series CESifo Working Paper No. , CESifo GmbH. [Downloadable!]
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  10. Giles Duranton & Diego Puga, 2003. "Micro-Foundations of Urban Agglomeration Economies," NBER Working Papers 9931, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  11. Carlos Alós-Ferrer & Georg Kirchsteiger & Markus Walzl, 2007. "On the Evolution of Market Institutions: The Platform Design Paradox," CESifo Working Paper Series CESifo Working Paper No. , CESifo GmbH. [Downloadable!]
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  12. Damiano, Ettore & Li, Hao, 2005. "Competing Matchmaking," Micro Theory Working Papers damiano-05-01-25-10-08-07, Microeconomics.ca Website, revised 18 Oct 2005. [Downloadable!]
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  13. Anna, BOGOMOLNAIA & Michel, LE BRETON & Alexei, SAVVATEEV & Sholmo, WEBER, 2006. "Heterogeneity gap in stable juridiction structures," Université catholique de Louvain, Département des Sciences Economiques Working Paper 2006019, Université catholique de Louvain, Département des Sciences Economiques. [Downloadable!]
  14. Marc Rysman, 2003. "Adoption Delay in a Standards War," Working Papers 03-11, NET Institute, revised Oct 2003. [Downloadable!]
  15. Henry G. Overman & Diego Puga, 2008. "Labour pooling as a source of agglomeration: An empirical investigation," Working Papers 2008-05, Instituto Madrileño de Estudios Avanzados (IMDEA) Ciencias Sociales. [Downloadable!]
  16. Glenn Ellison & Drew Fudenberg & Markus Mobius, 2003. "Competing Auctions," Levine's Bibliography 506439000000000092, UCLA Department of Economics. [Downloadable!]
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  17. Paul Belleflamme & Eric Toulemonde, 2007. "Negative Intra-Group Externalities in Two-Sided Markets," CESifo Working Paper Series CESifo Working Paper No. , CESifo GmbH. [Downloadable!]
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