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Banks Net Interest Margin and the Level of Interest Rates

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  • Busch, Ramona
  • Memmel, Christoph

Abstract

An increase in the level of interest rates is said to have a negative impact on banks net interest margins in the short run. Using a time series of more than 40 years for the German banking system, we show that the opposite effect exists in the long run, where an increase in the level of interest rates by 100 basis points leads to an estimated increase of 7 basis points in the banks net interest margin. In addition, we analyze the consequences of the low-interest rate environment and find that banks interest margins for retail deposits, especially for term deposits, have declined by up to 97 basis points.

Suggested Citation

  • Busch, Ramona & Memmel, Christoph, 2015. "Banks Net Interest Margin and the Level of Interest Rates," VfS Annual Conference 2015 (Muenster): Economic Development - Theory and Policy 113187, Verein für Socialpolitik / German Economic Association.
    • Handle: RePEc:zbw:vfsc15:113187
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    References listed on IDEAS

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    1. Itamar Drechsler & Alexi Savov & Philipp Schnabl, 2017. "The Deposits Channel of Monetary Policy," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 132(4), pages 1819-1876.
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    7. Christoph Memmel, 2014. "Banks' interest rate risk: the net interest income perspective versus the market value perspective," Quantitative Finance, Taylor & Francis Journals, vol. 14(6), pages 1059-1068, June.
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    More about this item

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects

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