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Financial networks: contagion, commitment, and private sector bailouts

  • Yaron Leitner
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    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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    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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    1. Venkatesh Bala & Sanjeev Goyal, 2000. "A Noncooperative Model of Network Formation," Econometrica, Econometric Society, vol. 68(5), pages 1181-1230, September.
    2. 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.
    3. Acharya, Viral V, 2009. "A Theory of Systemic Risk and Design of Prudential Bank Regulation," CEPR Discussion Papers 7164, C.E.P.R. Discussion Papers.
    4. Besley, Timothy & Coate, Stephen, 1995. "Group lending, repayment incentives and social collateral," Journal of Development Economics, Elsevier, vol. 46(1), pages 1-18, February.
    5. Matthew O. Jackson & Asher Wolinsky, 1995. "A Strategic Model of Social and Economic Networks," Discussion Papers 1098R, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
    6. Rothschild, Michael & Stiglitz, Joseph E., 1970. "Increasing risk: I. A definition," Journal of Economic Theory, Elsevier, vol. 2(3), pages 225-243, September.
    7. Douglas W. Diamond & Raghuram G. Rajan, 2001. "Liquidity Risk, Liquidity Creation, and Financial Fragility: A Theory of Banking," Journal of Political Economy, University of Chicago Press, vol. 109(2), pages 287-327, April.
    8. 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.
    9. Mathias Dewatripont & Eric Maskin, 2004. "Credit and efficiency in centralized and decentralized economies," ULB Institutional Repository 2013/9605, ULB -- Universite Libre de Bruxelles.
    10. Lagunoff, Roger & Schreft, Stacey L., 2001. "A Model of Financial Fragility," Journal of Economic Theory, Elsevier, vol. 99(1-2), pages 220-264, July.
    11. Freixas, Xavier, 1999. "Optimal Bail-Out, Conditionality and Creative Ambiguity," CEPR Discussion Papers 2238, C.E.P.R. Discussion Papers.
    12. John Duffy & Dean Corbae, 2006. "Experiments with Network Formation," Working Papers 292, University of Pittsburgh, Department of Economics, revised Aug 2007.
    13. 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.
    14. Kremer, Michael, 1993. "The O-Ring Theory of Economic Development," The Quarterly Journal of Economics, MIT Press, vol. 108(3), pages 551-75, August.
    15. 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.
    16. Albert S. Kyle, 2001. "Contagion as a Wealth Effect," Journal of Finance, American Finance Association, vol. 56(4), pages 1401-1440, 08.
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