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Excessive bank risk taking and monetary policy

  • Agur, Itai
  • Demertzis, Maria

Why should monetary policy "lean against the wind"? Can’t bank regulation perform its task alone? We model banks that choose both asset volatility and leverage, and identify how monetary policy transmits to bank risk. Subsequently, we introduce a regulator whose tool is a risk-based capital requirement. We derive from welfare that the regulator trades off bank risk and credit supply, and show that monetary policy affects both sides of this trade-off. Hence, regulation cannot neutralize the policy rate’s impact, and monetary policy matters for financial stability. An extension shows how the commonality of bank exposures affects monetary transmission. JEL Classification: E43, E52, E61, G01, G21, G28

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Paper provided by European Central Bank in its series Working Paper Series with number 1457.

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Date of creation: Aug 2012
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Handle: RePEc:ecb:ecbwps:20121457
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  1. Franck Portier & Aude Pommeret & Olivier Loisel, 2008. "Monetary policy and herd behavior in new-tech investment," 2008 Meeting Papers 444, Society for Economic Dynamics.
  2. Gregory DE WALQUE & Olivier PIERRARD & Abdelaziz ROUABAH, 2009. "Financial (in)stability, supervision and liquidity injections : a dynamic general equilibrium approach," Discussion Papers (IRES - Institut de Recherches Economiques et Sociales) 2009006, Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES).
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  8. Itai Agur & Maria Demertzis, 2011. ""Leaning Against the Wind" and the Timing of Monetary Pollicy," DNB Working Papers 303, Netherlands Central Bank, Research Department.
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  28. repec:dgr:kubcen:200931s is not listed on IDEAS
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