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Interbank intermediation

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  • Bluhm, Marcel
  • Georg, Co-Pierre
  • Krahnen, Jan-Pieter

Abstract

This paper explores the economics of interbank lending and borrowing using bank-balance sheet data for Germany, the largest European economy. Our 2002 - 2014 panel data set allows us to analyze the cross section and the dynamics of the observed interbank exposures. Our findings suggest a genuine intermediation process within the banking system, with implications for allocative efficiency and financial stability. A typical bank in our sample holds a significant amount of term and overnight interbank positions on both sides of the balance sheet simultaneously, and at any point in time. The average contract length in the German interbank market is well above one year, which stands in contrast to the widely held view that interbank exposures are largely overnight. Based on panel regressions, we find the build-up of the interbank book to be driven by innovations in the client book (i.e. non-bank deposit taking and lending). The resulting interbank book affects the bank's duration gap, the maturity disparity between bank assets and bank liabilities. A bank's duration gap is often seen as its major macroeconomic risk factor. Overall our findings lend support to a theory of banking that involves leverage stacks, i.e intermediation among banks.

Suggested Citation

  • Bluhm, Marcel & Georg, Co-Pierre & Krahnen, Jan-Pieter, 2016. "Interbank intermediation," Discussion Papers 16/2016, Deutsche Bundesbank.
    • Handle: RePEc:zbw:bubdps:162016
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    References listed on IDEAS

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    Cited by:

    1. Aldasoro, Iñaki & Alves, Iván, 2018. "Multiplex interbank networks and systemic importance: An application to European data," Journal of Financial Stability, Elsevier, vol. 35(C), pages 17-37.
    2. Barth, Andreas & Seckinger, Christian, 2018. "Capital regulation with heterogeneous banks – Unintended consequences of a too strict leverage ratio," Journal of Banking & Finance, Elsevier, vol. 88(C), pages 455-465.
    3. Jean-Yves Gnabo & Nicolas K. Scholtes, 2016. "Assessing the role of interbank network structure in business and financial cycle analysis," Working Paper Research 307, National Bank of Belgium.
    4. Fink, Kilian & Krüger, Ulrich & Meller, Barbara & Wong, Lui-Hsian, 2016. "The credit quality channel: Modeling contagion in the interbank market," Journal of Financial Stability, Elsevier, vol. 25(C), pages 83-97.
    5. Galina Hale & Tümer Kapan & Camelia Minoiu & Philip Strahan, 2020. "Shock Transmission Through Cross-Border Bank Lending: Credit and Real Effects," The Review of Financial Studies, Society for Financial Studies, vol. 33(10), pages 4839-4882.
    6. Craig, Ben & Ma, Yiming, 2022. "Intermediation in the interbank lending market," Journal of Financial Economics, Elsevier, vol. 145(2), pages 179-207.
    7. Bluhm, Marcel, 2018. "Persistent liquidity shocks and interbank funding," Journal of Financial Stability, Elsevier, vol. 36(C), pages 246-262.
    8. Silva, Thiago Christiano & Guerra, Solange Maria & da Silva, Michel Alexandre & Tabak, Benjamin Miranda, 2020. "Micro-level transmission of monetary policy shocks: The trading book channel," Journal of Economic Behavior & Organization, Elsevier, vol. 179(C), pages 279-298.

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    More about this item

    Keywords

    interbank markets; liquidity; financial stability;
    All these keywords.

    JEL classification:

    • G2 - Financial Economics - - Financial Institutions and Services

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