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The Impact of the Volatility of Monetary Policy Shocks

Authors

  • HAROON MUMTAZ,

  • FRANCESCO ZANETTI


  • The authors would like to thank Johannes Pfeifer, Juan Rubio-Ramírez, Lydia Silver, and Konstantinos Theodoridis for extremely helpful comments and suggestions. This paper represents the views and analysis of the authors and should not be thought to represent those of the Bank of England or the Monetary Policy Committee members.

Abstract

This paper studies the impact of the volatility of monetary policy using a structural vector auroregression (SVAR) model enriched along two dimensions. First, it allows for time-varying variance of monetary policy shocks via a stochastic volatility specification. Second, it allows a dynamic interaction between the level of the endogenous variables in the VAR and the time-varying volatility. The analysis establishes that the nominal interest rate, output growth, and inflation fall in reaction to an increase in the volatility of monetary policy. The analysis also develops a dynamic stochastic general equilibrium model enriched with stochastic volatility to monetary policy that generates similar responses and provides a theoretical underpinning of these findings.

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