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Macroeconomic and financial stability in a monetary union: The case of Lithuania

Margarita Rubio () and Mariarosaria Comunale

Economic Systems, 2018, vol. 42, issue 1, 75-90

Abstract: In this paper, we study the implications of macroprudential policies in a monetary union for macroeconomic and financial stability. For this purpose, we develop a two-country monetary union new Keynesian general equilibrium model with housing and collateral constraints, to be calibrated for Lithuania and the rest of the euro area. We consider two different scenarios for macroprudential policies: one in which the ECB extends its goals to also include financial stability and a second one in which a national macroprudential authority uses the loan-to-value ratio (LTV) as an instrument. The results show that both rules are effective in making the financial system more stable in both countries, and especially in Lithuania. This is because the financial sector in this country is more sensitive to shocks. We find that an extended Taylor rule is indeed effective in reducing the volatility of credit, but comes with a cost in terms of higher inflation volatility. The simple LTV rule, on the other hand, does not compromise the objective of monetary policy. This reinforces the “Tinbergen principle”, which argues that there should be two different instruments when there are two different policy goals.

Keywords: Macroprudential policy; Housing market; LTV; Monetary union; Financial stability (search for similar items in EconPapers)
JEL-codes: E32 E44 F36 (search for similar items in EconPapers)
Date: 2018
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