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Financial networks: contagion, commitment, and private sector bailouts

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  • Yaron Leitner
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    Abstract

    The author develops a model of financial networks where linkages not only spread contagion, but also induce private-sector bailouts in which liquid banks bail out illiquid banks because of the threat of contagion. Introducing this bailout possibility, the author shows that linkages may be optimal ex-ante because they allow banks to obtain some mutual insurance even though formal commitments are impossible. However, in some cases (for example, when liquidity is concentrated among a small group of banks), the whole network may collapse. The author also characterizes the optimal network size and apply the results to joint liability arrangements and payment systems.> Original working paper title: Fragile financial networks.

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    File URL: http://www.philadelphiafed.org/research-and-data/publications/working-papers/2002/wp02-9r.pdf
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    Bibliographic Info

    Paper provided by Federal Reserve Bank of Philadelphia in its series Working Papers with number 02-9.

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    Date of creation: 2004
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    Publication status: Published in Journal of Finance, 60, no. 6 (December, 2005) : 2925-2953
    Handle: RePEc:fip:fedpwp:02-9

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    Keywords: Financial markets;

    References

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    1. Douglas W. Diamond & Raghuram G. Rajan, 1998. "Liquidity risk, liquidity creation and financial fragility: a theory of banking," Proceedings, Federal Reserve Bank of San Francisco, issue Sep.
    2. Albert S. Kyle, 2001. "Contagion as a Wealth Effect," Journal of Finance, American Finance Association, vol. 56(4), pages 1401-1440, 08.
    3. X. Freixas & B. Parigi & J-C. Rochet, 2000. "Systemic Risk, Interbank Relations and Liquidity Provision by theCentral Bank," DNB Staff Reports (discontinued) 47, Netherlands Central Bank.
    4. Besley, T. & Coate, S., 1991. "Group Lending, Repayment Incentives And Social Collateral," Papers 152, Princeton, Woodrow Wilson School - Development Studies.
    5. Matthew O. Jackson & Asher Wolinsky, 1994. "A Strategic Model of Social and Economic Networks," Discussion Papers 1098, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
    6. Mathias Dewatripont & Eric Maskin, 2004. "Credit and efficiency in centralized and decentralized economies," ULB Institutional Repository 2013/9605, ULB -- Universite Libre de Bruxelles.
    7. Dean Corbae & John Duffy, 2003. "Experiments with Network Formation," Levine's Working Paper Archive 666156000000000319, David K. Levine.
    8. Freixas, Xavier, 1999. "Optimal Bail-Out, Conditionality and Creative Ambiguity," CEPR Discussion Papers 2238, C.E.P.R. Discussion Papers.
    9. Venkatesh Bala & Sanjeev Goyal, 2000. "A Noncooperative Model of Network Formation," Econometrica, Econometric Society, vol. 68(5), pages 1181-1230, September.
    10. Diamond, Douglas W & Dybvig, Philip H, 1983. "Bank Runs, Deposit Insurance, and Liquidity," Journal of Political Economy, University of Chicago Press, vol. 91(3), pages 401-19, June.
    11. Roger Lagunoff & Stacey L. Schreft, 1998. "A Model of Financial Fragility," Game Theory and Information 9803001, EconWPA, revised 30 Apr 1998.
    12. Franklin Allen & Douglas Gale, 1998. "Financial Contagion Journal of Political Economy," Center for Financial Institutions Working Papers 98-31, Wharton School Center for Financial Institutions, University of Pennsylvania.
    13. Acharya, Viral V., 2009. "A theory of systemic risk and design of prudential bank regulation," Journal of Financial Stability, Elsevier, vol. 5(3), pages 224-255, September.
    14. Jean-Charles Rochet & Jean Tirole, 1996. "Interbank lending and systemic risk," Proceedings, Board of Governors of the Federal Reserve System (U.S.), pages 733-765.
    15. Kremer, Michael, 1993. "The O-Ring Theory of Economic Development," The Quarterly Journal of Economics, MIT Press, vol. 108(3), pages 551-75, August.
    16. Rothschild, Michael & Stiglitz, Joseph E., 1970. "Increasing risk: I. A definition," Journal of Economic Theory, Elsevier, vol. 2(3), pages 225-243, September.
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    Cited by:
    1. Spagnolo, Giancarlo & Lippert, Steffen, 2004. "Networks of Relations," Working Paper Series in Economics and Finance 570, Stockholm School of Economics, revised 03 May 2005.

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