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Capital Adequacy and the Bank Lending Channel: Macroeconomic Implications

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  • Shaw, Ming-fu
  • Chang, Juin-jen
  • Chen, Hung-Ju

Abstract

This paper develops an analytically tractable dynamic general-equilibrium model with a banking system to examine the macroeconomic implications of capital adequacy requirements. In contrast to the hypothesis of a credit crunch, we find that increasing the strength of bank capital requirements does not necessarily reduce the equilibrium quantity of loans, provided that banks have the option to respond to the capital requirements by accumulating more equity instead of cutting back on lending. Accordingly, we show that there is an inverted-U-shaped relationship between CAR and capital accumulation (and consumption). Furthermore, the optimal capital adequacy ratio for social-welfare maximization is lower than that for capital-accumulation maximization. In accordance with general empirical findings, the capital- accumulation maximizing capital adequacy ratio is procyclical with respect to economic conditions. We also find that monetary policy affects the real macroeconomic activities via the so-called bank lending channel, but the effectiveness of monetary policy is weakened by bank capital requirements.

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Bibliographic Info

Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 41056.

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Date of creation: 05 Sep 2012
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Handle: RePEc:pra:mprapa:41056

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Keywords: Banking capital regulation; bank lending channel; the loan-deposit rate;

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Cited by:
  1. Perera, Anil & Ralston, Deborah & Wickramanayake, J., 2014. "Impact of off-balance sheet banking on the bank lending channel of monetary transmission: Evidence from South Asia," Journal of International Financial Markets, Institutions and Money, Elsevier, Elsevier, vol. 29(C), pages 195-216.
  2. Akinci, Dervis Ahmet & Matousek, Roman & Radić, Nemanja & Stewart, Chris, 2013. "Monetary policy and the banking sector in Turkey," Journal of International Financial Markets, Institutions and Money, Elsevier, Elsevier, vol. 27(C), pages 269-285.

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