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Bank efficiency and the bank lending channel: new evidence

Author

Listed:
  • Richard Adjei Dwumfour

    (University of Ghana Business School
    Kwame Nkrumah University of Science and Technology)

  • Eric Fosu Oteng-Abayie

    (Kwame Nkrumah University of Science and Technology)

  • Emmanuel Kwasi Mensah

    (University of Insubria)

Abstract

We test the bank lending channel of monetary policy in Africa and examine the role of bank cost efficiency in this relationship. We use the stochastic metafrontier approach to estimate cost efficiency scores of 447 commercial banks in Africa. The fixed effect (FE) estimator is used as the baseline estimation method. The 2SLS instrumental variables (IV) and two-step system GMM approaches are used as main estimation techniques to control for endogeneity. The results consistently show the existence of the bank lending channel in Africa: thus, bank credit responds to changes in monetary policy rate. Again, we find strong evidence to show that higher cost efficiency leads to higher loan growth. The results further show that cost-efficient banks are less responsive to monetary policy shocks. The evidence suggests that bank cost efficiency weakens the bank lending channel. This implies that the effect of monetary policy on bank lending depends not only on bank size, capitalization, and liquidity as espoused in the literature but also on bank efficiency. The results are robust in formal sample-splitting. Policy implications are discussed.

Suggested Citation

  • Richard Adjei Dwumfour & Eric Fosu Oteng-Abayie & Emmanuel Kwasi Mensah, 2022. "Bank efficiency and the bank lending channel: new evidence," Empirical Economics, Springer, vol. 63(3), pages 1489-1542, September.
  • Handle: RePEc:spr:empeco:v:63:y:2022:i:3:d:10.1007_s00181-021-02166-5
    DOI: 10.1007/s00181-021-02166-5
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    More about this item

    Keywords

    Bank efficiency; Monetary policy; Bank lending channel; Stochastic metafrontier; Africa;
    All these keywords.

    JEL classification:

    • B22 - Schools of Economic Thought and Methodology - - History of Economic Thought since 1925 - - - Macroeconomics
    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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