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Macro to the rescue? An analysis of macroprudential instruments to regulate housing credit

Alexander Falter

No 25/2019, Discussion Papers from Deutsche Bundesbank

Abstract: This paper builds a macro model with a financial sector and a housing market to understand the transmission and effects of macroprudential instruments addressing mortgage credit. The model compares the introduction of a loan-to-value ratio (LTV), a countercyclical capital buffer (CCyB)-style rule and sectoral constraints similar to sectoral risk weights. The results show that instruments work largely as intended and are to different extents suitable to dampen credit booms. Moreover, there is a trade-off between effectiveness, i.e. the extent to which instruments are able to dampen credit booms, and efficiency, i.e. the extent to which instruments might exhibit unintended consequences for the financial sector or real economy. General shocks, where housing credit increases as a side effect of larger movements, might warrant the use of the CCyB or also sectoral risk weights to correct for sector specific developments. Simple sectoral shocks can be dealt with or responded to first with sectoral risk weights. The LTV is much more effective than sectoral risk weights in confining credit growth, but shows less efficiency due to strong substitution effects.

Keywords: Macroprudential Regulation; Mortgage Markets; Housing Markets; Asset Markets; Waterbed Effects (search for similar items in EconPapers)
JEL-codes: E31 G21 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-ban, nep-cba, nep-dge, nep-mac and nep-ure
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:zbw:bubdps:252019

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