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The Role of Middlemen inEfficient and Strongly Pairwise Stable Networks

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  • Gilles, R.P.
  • Chakrabarti, S.
  • Sarangi, S.
  • Badasyan, N.

    (Tilburg University, Center for Economic Research)

Abstract

We examine the strong pairwise stability concept in network formation theory under collective network benefits.Strong pairwise stability considers a pair of players to add a link through mutual consent while permitting them to unilaterally delete any subset of links under their control.We examine the properties of strongly pairwise stable networks and find that players in middleman positions, who have the power to break up the network into multiple components, play a critical role in such networks.We show that for the component-wise egalitarian rule there is no conflict between the efficient and stable networks when these middlemen have no incentive to break up the network. Finally, we examine efficiency and stability in middleman-free networks.

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Bibliographic Info

Paper provided by Tilburg University, Center for Economic Research in its series Discussion Paper with number 2004-64.

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Date of creation: 2004
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Handle: RePEc:dgr:kubcen:200464

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Keywords: networks; stability;

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References

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  1. Hideo Konishi & M. Utku Ünver, 2003. "Credible Group Stability in Multi-Partner Matching Problems," Working Papers 2003.115, Fondazione Eni Enrico Mattei.
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  9. Venkatesh Bala & Sanjeev Goyal, 2000. "A Noncooperative Model of Network Formation," Econometrica, Econometric Society, vol. 68(5), pages 1181-1230, September.
  10. Antoni Calvo-Armengol & Matthew O. Jackson, 2002. "Social Networks in Determining Employment and Wages: Patterns, Dynamics, and Inequality," Microeconomics 0211007, EconWPA.
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  13. Narine Badasyan & Subhadip Chakrabarti, 2003. "Private Peering Among Internet Backbone Providers," Microeconomics 0301003, EconWPA.
  14. Rubinstein, Ariel & Wolinsky, Asher, 1987. "Middlemen," The Quarterly Journal of Economics, MIT Press, vol. 102(3), pages 581-93, August.
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Cited by:
  1. Borkotokey, Surajit & Sarangi, Sudipta, 2011. "Allocation rules for fixed and flexible networks: the role of players and their links," MPRA Paper 38340, University Library of Munich, Germany.
  2. Hemant Patil, 2011. "Buyer–seller networks with demand shocks and intermediation," Review of Economic Design, Springer, vol. 15(2), pages 121-145, June.
  3. Gilles, R.P. & Sarangi, S., 2004. "Social Network Formation with Consent," Discussion Paper 2004-70, Tilburg University, Center for Economic Research.

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