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Bank capitalization heterogeneity and monetary policy

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  • Peter Paz

    (Banco de España)

Abstract

This paper shows that heterogeneity in bank capitalization ratios plays a crucial role in the transmission of monetary policy to bank lending. First, I offer new empirical evidence on how banks’ lending responses to monetary policy shocks depend on their capitalization ratios. Highly capitalized banks reduce their lending more after a monetary tightening, even after controlling for bank liquidity, size and market power in the deposit market. I also document how highly capitalized banks have a riskier portfolio, as measured by loan charge-off rates, and default rates on their loans increase relatively more after a tightening in monetary policy. I then construct a dynamic macroeconomic model that rationalizes the empirical evidence through the interaction of the heterogeneous recovery technologies of banks facing a risk-weighted capital constraint. In particular, after an increase in the policy rate, the model predicts that loan rates and default probabilities increase in both sectors. Highly capitalized banks with a riskier portfolio are more sensitive because the risk-weighted capital constraint affects them more, so they contract lending more. In a counterfactual analysis, I find higher capital requirements amplify the effects of monetary policy.

Suggested Citation

  • Peter Paz, 2022. "Bank capitalization heterogeneity and monetary policy," Working Papers 2234, Banco de España.
    • Handle: RePEc:bde:wpaper:2234
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    References listed on IDEAS

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    More about this item

    Keywords

    monetary policy; banks; heterogeneity;
    All these keywords.

    JEL classification:

    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • E60 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - General
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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