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Estimating Bilateral Exposures in the German Interbank Market: Is there a Danger of Contagion?

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  • Upper, Christian
  • Worms, Andreas

Abstract

Credit risk associated with interbank lending may lead to domino effects, where the failure of one bank results in the failure of other banks not directly affected by the initial shock. Recent work in economic theory shows that this risk of contagion depends on the precise pattern of interbank linkages. We use balance sheet information to estimate the matrix of bilateral credit relationships for the German banking system and test whether the breakdown of a single bank can lead to contagion. We find that the financial safety net (institutional guarantees for saving banks and cooperative banks) considerably reduces - but does not eliminate - the danger of contagion. Even so, the failure of a single bank could lead to the breakdown of up to 15 % of the banking system in terms of assets.

Suggested Citation

  • Upper, Christian & Worms, Andreas, 2002. "Estimating Bilateral Exposures in the German Interbank Market: Is there a Danger of Contagion?," Discussion Paper Series 1: Economic Studies 2002,09, Deutsche Bundesbank.
    • Handle: RePEc:zbw:bubdp1:4174
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    JEL classification:

    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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