Macroprudential Policy Implementation in a Heterogeneous Monetary Union

Margarita Rubio

No 2014/03, Discussion Papers from University of Nottingham, Centre for Finance, Credit and Macroeconomics (CFCM)

Abstract: I develop a two-country new Keynesian general equilibrium model with housing and collateral constraints to explore how macroprudential policies should be conducted in a heterogeneous monetary union. I consider four types of cross-country heterogeneity: asymmetric shocks, different loan-to-value ratios (LTV), different proportion of borrowers, and mortgage contract heterogeneity (fixed and variable rates). As a macroprudential tool, I propose a Taylor-type rule for the LTV which responds to deviations in output and house prices. This policy can be applied at a national or union level. Results show that asymmetries matter for the implementation of macroprudential policies, especially when the heterogeneity delivers differences in economic and financial volatilities. A centralized macroprudential policy is preferred if there is an asymmetric shock, to balance out the cross-country different financial volatilities. For the mortgage contract heterogeneity, the economy is better off with a decentralized policy that compensates the lack of effectiveness of monetary policy in the fixed-rate country. For the LTV asymmetry and the different proportion of borrowers, conducting the macroprudential policy at a national or union level produces similar welfare gains.

Keywords: Macroprudential; Housing market; LTV; monetary union; financial stability (search for similar items in EconPapers)
Date: 2014-03
New Economics Papers: this item is included in nep-ban, nep-dge, nep-mac, nep-mon and nep-ure
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Citations: View citations in EconPapers (20)

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Journal Article: Macroprudential policy implementation in a heterogeneous monetary union (2024)
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