Concerted efforts? Monetary policy and macro-prudential tools

Working papers set out research in progress by our staff, with the aim of encouraging comments and debate.
Published on 25 May 2018

Staff Working Paper No. 727
By Andrea Ferrero, Richard Harrison and Ben Nelson

The inception of macro-prudential policy frameworks in the wake of the global financial crisis raises questions of how macro-prudential and monetary policies should be coordinated. We examine these questions through the lens of a macroeconomic model featuring nominal rigidities, housing, incomplete risk-sharing between borrower and saver households, and macro-prudential tools in the form of mortgage loan-to-value and bank capital requirements. We derive a welfare-based loss function which suggests a role for active macro-prudential policy to enhance risk sharing. Macro-prudential policy faces trade-offs, however, and complete macro-prudential stabilization is not generally possible in our model. Nonetheless, simulations of a house price boom and subsequent correction suggest that macro-prudential tools could alleviate debt-deleveraging and help avoid zero lower bound episodes, even when macro-prudential tools themselves impose only occasionally binding constraints on debt dynamics in the economy.

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