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Interbank network and bank bailouts: Insurance mechanism for non-insured creditors?

Author

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  • Eisert, Tim
  • Eufinger, Christian

Abstract

This paper presents a theory that explains why it is beneficial for banks to be highly interconnected on the interbank market. Using a simple network structure, it shows that, if there is a non-zero bailout probability, banks can significantly increase the expected repayment of uninsured creditors by entering into cyclical liabilities on the interbank market before investing in loan portfolios. Therefore, banks are better able to attract funds from uninsured creditors. Our results show that implicit government guarantees incentivize banks to have large interbank exposures, to be highly interconnected, and to invest in highly correlated, risky portfolios.

Suggested Citation

  • Eisert, Tim & Eufinger, Christian, 2013. "Interbank network and bank bailouts: Insurance mechanism for non-insured creditors?," SAFE Working Paper Series 10, Research Center SAFE - Sustainable Architecture for Finance in Europe, Goethe University Frankfurt.
  • Handle: RePEc:zbw:safewp:10
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    File URL: https://www.econstor.eu/bitstream/10419/88737/1/775688738.pdf
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    References listed on IDEAS

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    1. Wetherilt, Anne & Zimmerman, Peter & Soramaki, Kimmo, 2010. "The sterling unsecured loan market during 2006-08: insights from network theory," Bank of England working papers 398, Bank of England.
    2. Gary Gorton & Lixin Huang, 2004. "Liquidity, Efficiency, and Bank Bailouts," American Economic Review, American Economic Association, vol. 94(3), pages 455-483, June.
    3. Soramäki, Kimmo & Bech, Morten L. & Arnold, Jeffrey & Glass, Robert J. & Beyeler, Walter E., 2007. "The topology of interbank payment flows," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 379(1), pages 317-333.
    4. Sandro Brusco & Fabio Castiglionesi, 2007. "Liquidity Coinsurance, Moral Hazard, and Financial Contagion," Journal of Finance, American Finance Association, vol. 62(5), pages 2275-2302, October.
    5. Xavier Freixas, 2005. "Interbank Market Integration under Asymmetric Information," Review of Financial Studies, Society for Financial Studies, vol. 18(2), pages 459-490.
    6. Douglas W. Diamond & Raghuram G. Rajan, 2002. "Bank Bailouts and Aggregate Liquidity," American Economic Review, American Economic Association, vol. 92(2), pages 38-41, May.
    7. Rochet, Jean-Charles & Tirole, Jean, 1996. "Interbank Lending and Systemic Risk," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 28(4), pages 733-762, November.
    8. Jeannette Müller, 2006. "Interbank Credit Lines as a Channel of Contagion," Journal of Financial Services Research, Springer;Western Finance Association, vol. 29(1), pages 37-60, February.
    Full references (including those not matched with items on IDEAS)

    Citations

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    Cited by:

    1. Roukny, Tarik & Georg, Co-Pierre & Battiston, Stefano, 2014. "A network analysis of the evolution of the German interbank market," Discussion Papers 22/2014, Deutsche Bundesbank.
    2. Barattieri, Alessandro & Moretti, Laura & Quadrini, Vincenzo, 2016. "Banks Interconnectivity and Leverage," Research Technical Papers 07/RT/16, Central Bank of Ireland.
    3. Marius A. Zoican & Lucyna A. Górnicka, 2013. "Banking Unions: Distorted Incentives and Efficient Bank Resolution," Tinbergen Institute Discussion Papers 13-184/VI, Tinbergen Institute, revised 16 May 2014.
    4. repec:ces:ifodic:v:11:y:2014:i:4:p:19105947 is not listed on IDEAS
    5. Górnicka, Lucyna A. & Zoican, Marius A., 2016. "Too-international-to-fail? Supranational bank resolution and market discipline," Journal of Banking & Finance, Elsevier, vol. 65(C), pages 41-58.
    6. Marius Andrei Zoican & Lucyna Anna Gornicka, 2014. "Banking Union Optimal Design under Moral Hazard," 2014 Papers pzo33, Job Market Papers.
    7. Florian Buck, 2014. "Financial Regulation and the Grabbing Hand," ifo DICE Report, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 11(4), pages 03-13, 01.

    More about this item

    Keywords

    bailout; cycle flows; cyclical liabilities; interbank network; leverage;

    JEL classification:

    • G01 - Financial Economics - - General - - - Financial Crises
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation

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