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Market sharing agreements and collusive networks

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Author Info
Paul Belleflamme
Francis Bloch

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Abstract

We analyze reciprocal market sharing agreements by which firms commit not to enter each other's territory in oligopolistic markets and procurement auctions. The set of market sharing agreements defines a collusive network. We characterize stable collusive networks when firms and markets are symmetric. Stable networks are formed of complete alliances, of different sizes, larger than a minimal threshold. Typically, stable networks display fewer agreements than the optimal network for the industry and more agreements than the socially optimal network. When firms or markets are asymmetric, stable networks may involve incomplete alliances and be underconnected with respect to the social optimum. Copyright 2004 by the Economics Department Of The University Of Pennsylvania And Osaka University Institute Of Social And Economic Research Association.

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Article provided by Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association in its journal International Economic Review.

Volume (Year): 45 (2004)
Issue (Month): 2 (05)
Pages: 387-411
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Handle: RePEc:ier:iecrev:v:45:y:2004:i:2:p:387-411

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  1. Ana, MAULEON & Huasheng, SONG & Vincent, VANNETELBOSCH, 2006. "Networks for Free Trade Agreements among Heterogeneous Countries," Université catholique de Louvain, Département des Sciences Economiques Working Paper 2006029, Université catholique de Louvain, Département des Sciences Economiques. [Downloadable!]
  2. Masaki Iimura & Seiji Murakoshi & Toru Hokari, 2007. "Subgame-perfect market sharing agreements," Economics Bulletin, Economics Bulletin, vol. 3(7), pages 1-14. [Downloadable!]
  3. Paolo Pin, 2006. "Eight degrees of separation," Working Papers 2006_26, University of Venice "Ca' Foscari", Department of Economics. [Downloadable!]
  4. Ana, MAULEON & José, SEMPERE-MONERRIS & Vincent, VANNETELBOSCH, 2005. "Networks of Manufacturers and Retailers," Université catholique de Louvain, Département des Sciences Economiques Working Paper 2005036, Université catholique de Louvain, Département des Sciences Economiques. [Downloadable!]
  5. Steffen Lippert & Giancarlo Spagnolo, 2004. "Networks of Relations," Discussion Papers 28, SFB/TR 15 Governance and the Efficiency of Economic Systems, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich. [Downloadable!]
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  6. Robert P. Gilles & Sudipta Sarangi, 2006. "Building Social Networks," Discussion Papers of DIW Berlin 642, DIW Berlin, German Institute for Economic Research. [Downloadable!]
  7. Noemí Navarro, 2008. "A Sensitive Flexible-network Approach," Working Papers 2008-2, Universidad de Málaga, Department of Economic Theory, Málaga Economic Theory Research Center. [Downloadable!]
  8. Matthew O. Jackson, 2003. "A survey of models of network formation: Stability and efficiency," Working Papers 1161, California Institute of Technology, Division of the Humanities and Social Sciences. [Downloadable!]
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  9. Marco A. Marini, 2007. "An Overview of Coalitions and Networks Formation Models for Economic Applications," Working Papers 0707, CREI Università degli Studi Roma Tre, revised 2007. [Downloadable!]
  10. Sudipta Sarangi & Robert P. Gilles, . "The Role of Beliefs and Confidence in Building Social Networks," Departmental Working Papers 2005-15, Department of Economics, Louisiana State University. [Downloadable!]
  11. Gilles, R.P. & Sarangi, S., 2004. "Social network formation with consent," Discussion Paper 70, Tilburg University, Center for Economic Research. [Downloadable!]
  12. Sudipta Sarangi & Robert P. Gilles, . "Stable Networks and Convex Payoffs," Departmental Working Papers 2005-13, Department of Economics, Louisiana State University. [Downloadable!]
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  13. Marco Marini, 2007. "An Overview of Coalition & Network Formation Models for Economic Applications," Working Papers 0712, University of Urbino Carlo Bo, Department of Economics, revised 2007. [Downloadable!]
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