Will macroprudential policy counteract monetary policy’s effects on financial stability? Bruegel Working Paper Issue 01 / 2018

Agur, Itai and Demertzis, Maria (2018) Will macroprudential policy counteract monetary policy’s effects on financial stability? Bruegel Working Paper Issue 01 / 2018. [Working Paper]

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Abstract

HHow does monetary policy impact upon macroprudential regulation? This paper models monetary policy’s transmission to bank risk taking, and its interaction with a regulator’s optimization problem. The regulator uses its macroprudential tool, a leverage ratio, to maintain financial stability, while taking account of the impact on credit provision. A change in the monetary policy rate tilts the regulator’s entire trade-off. We show that the regulator allows interest rate changes to partly “pass through” to bank soundness by not neutralizing the risk-taking channel of monetary policy. Thus, monetary policy affects financial stability, even in the presence of macroprudential regulation

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