Monetary and macroprudential policies under fixed and variable interest rates

Rubio, Margarita (2017) Monetary and macroprudential policies under fixed and variable interest rates. Macroeconomic Dynamics . ISSN 1469-8056

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In this paper, I analyze the ability of monetary policy to stabilize both the macroeconomy and financial markets under two different scenarios: fixed and variable-rate mortgages. I develop and solve a New Keynesian dynamic stochastic general equilibrium model (DSGE) that features a housing market and a group of constrained individuals who need housing collateral to obtain loans. A given share of constrained households borrows at a variable rate, while the rest borrow at a fixed rate. I consider two alternative ways of introducing a macroprudential approach to enhancing financial stability: one in which monetary policy, using the interest rate as an instrument, responds to credit growth; and a second one in which the macroprudential instrument is instead the loan-to-value ratio (LTV). The results show that when rates are variable, a countercyclical LTV rule performs better in stabilizing financial markets than monetary policy. However, when rates are fixed, even though monetary policy is less effective in stabilizing the macroeconomy, it does a good job in promoting financial stability.

Item Type: Article
Keywords: fixed/variable-rate mortgages, monetary policy, macroprudential policy, LTV, housing market, collateral constraint
Schools/Departments: University of Nottingham, UK > Faculty of Social Sciences > School of Economics
Identification Number:
Depositing User: Rubio, Margarita
Date Deposited: 24 Jan 2017 15:08
Last Modified: 04 May 2020 18:51

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