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Title: Macroeconomic stabilisation and monetary policy effectiveness in a low-interest-rate environment

Author(s): GŁnter Coenen, Carlos Montes-Galdon and Sebastian Schmidt

Publication Date: July 2021

Keyword(s): asset purchases, effective lower bound, forward guidance, make-up strategies and monetary policy

Programme Area(s): Monetary Economics and Fluctuations

Abstract: The secular decline in the equilibrium real interest rate observed over the past decades has materially limited the room for policy-rate reductions in recessions, and has led to a marked increase in the incidence of episodes where policy rates are likely to be at, or near, the effective lower bound on nominal interest rates. Using the ECB's New Area-Wide Model, we show that, if unaddressed, the effective lower bound can cause substantial costs in terms of worsened macroeconomic performance, as reflected in negative biases in inflation and economic activity, as well as heightened macroeconomic volatility. These costs can be mitigated by the use of nonstandard instruments, notably the joint use of interest-rate forward guidance and large-scale asset purchases. When considering alternatives to inflation targeting, we find that make-up strategies such as price-level targeting and average-inflation targeting can, if they are well-understood by the private sector, largely undo the negative biases and heightened volatility induced by the effective lower bound.

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Bibliographic Reference

Coenen, G, Montes-Galdon, C and Schmidt, S. 2021. 'Macroeconomic stabilisation and monetary policy effectiveness in a low-interest-rate environment'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=16403