Policy brief

How should the European Central Bank ‘normalise’ its monetary policy?

During the crisis, the ECB resorted to a number of unconventional monetary tools. This paper discusses how to phase out these policies and what the ‘n

Publishing date
23 November 2017

This policy contribution was prepared for the Committee on Economic and Monetary Affairs of the European Parliament (ECON) as an input for the Monetary Dialogue of 20 November 2017 between ECON and the President of the ECB.  Copyright remains with the European Parliament at all times

As the global financial crisis unfolded, the European Central Bank (ECB) and other central banks greatly extended their monetary policy toolboxes and adjusted their operational frameworks. These unconventional monetary policies have left central banks with large balance sheets.

As growth picks up in the euro area, there are discussions about how to normalise monetary policy, but it is unclear if normalisation means returning to monetary policy as it was prior to the crisis, or whether there is a ‘new normal’ that would justify different monetary policies.

The debate on the optimal size of the central bank’s balance sheet has not yet been settled. We discuss the benefits and drawbacks of central banks having permanently large balance sheets. It might be difficult to reduce them quickly without negatively affecting financial markets. In order to avoid market volatility, this process needs to be done gradually and preferably passively, by holding to maturity assets purchased during the crisis.

The interest rate – the central banks’ main conventional tool – might stay at a much lower level than historical standards and closer to the zero-lower bound because of a fall in the neutral rate, implying that in the future monetary policy would have to rely more on balance sheet policies and less on interest rate cuts to provide accommodation during recessions.

The combination of these two issues implies that the normalisation of monetary policy will be very slow and entail a long period with a large balance sheet. In the meantime, the ECB will not be able to go back to its pre-crisis operational framework.

In terms of the sequencing of the normalisation process, the experience of the US Federal Reserve, which was one of the first central banks to use unconventional tools during the crisis, could provide useful pointers to the ECB. Following the Fed’s example would involve tapering (ie gradually reducing asset purchases), then increasing key policy rates slowly before reducing passively the size of the balance sheet.

The Fed’s experience shows that the normalisation process needs to be communicated early in order to reduce uncertainty for market participants and avoid any disruption of financial markets. So far, the ECB has been quite successful in smoothly scaling back its asset purchases, but it has not yet provided a clear vision of what its monetary policy or operational framework will look like at the end of the normalisation process.

About the authors

  • Grégory Claeys

    Grégory Claeys, a French and Spanish citizen, joined Bruegel as a research fellow in February 2014, before being appointed senior fellow in April 2020.

    Grégory Claeys is currently on leave for public service, serving as Director of the Economics Department of France Stratégie, the think tank and policy planning institution of the French government, since November 2023.

    Grégory’s research interests include international macroeconomics and finance, central banking and European governance. From 2006 to 2009 Grégory worked as a macroeconomist in the Economic Research Department of the French bank Crédit Agricole. Prior to joining Bruegel he also conducted research in several capacities, including as a visiting researcher in the Financial Research Department of the Central Bank of Chile in Santiago, and in the Economic Department of the French Embassy in Chicago. Grégory is also an Associate Professor at the Conservatoire National des Arts et Métiers in Paris where he is teaching macroeconomics in the Master of Finance. He previously taught undergraduate macroeconomics at Sciences Po in Paris.

    He holds a PhD in Economics from the European University Institute (Florence), an MSc in economics from Paris X University and an MSc in management from HEC (Paris).

    Grégory is fluent in English, French and Spanish.

     

  • Maria Demertzis

    Maria Demertzis is a Senior fellow at Bruegel and part-time Professor of Economic Policy at the Florence School of Transnational Governance at the European University Institute. She was Bruegel’s Deputy Director until December 2022. She has previously worked at the European Commission and the research department of the Dutch Central Bank. She has also held academic positions at the Harvard Kennedy School of Government in the USA and the University of Strathclyde in the UK, from where she holds a PhD in economics. She has published extensively in international academic journals and contributed regular policy inputs to both the European Commission's and the Dutch Central Bank's policy outlets. She contributes regularly to national and international press and has regular column that appears twice a month in various EU newspapers and on Bruegel’s opinion page.

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