ECB highlights communication’s role in shaping euro area monetary policy transmission

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ECB on monetary policy communication

Highlights

The ECB's in-house large language model-based analysis confirms its communication shifts hawkish during tightening cycles and dovish during easing phases.
Information from ECB monetary policy statements enhances euro area core inflation forecasts several quarters ahead beyond ECB and Eurosystem staff projections.
Research shows ECB communications outside official meetings, including speeches and interviews, significantly influence market interest rates across maturities, rivaling formal announcements’ impact at longer horizons.

Research tools expand policy communication analysis

As outlined in an ECB speech, recent research by the central bank’s staff shows that advances in data availability, computing power and artificial intelligence are broadening how monetary policy communication is analysed.

While earlier methods relied mainly on dictionary-based approaches that counted words associated with restrictive or accommodative policy, newer machine learning techniques and large language models allow researchers to assess tone with more context. The ECB says its in-house LLM-based measures confirm that its communication becomes more hawkish during tightening phases and more dovish during easing periods.

The speech also says information extracted from ECB monetary policy statements can improve forecasts of euro area core inflation several quarters ahead, even when Eurosystem and ECB staff projections are taken into account. Those indicators can also help test whether central bank communication follows systematic patterns linked to the economic outlook and policy stance.

Market transmission and public outreach challenges

Communication between Governing Council meetings also matters for market pricing, according to the speech. Research covering thousands of speeches, interviews, hearings and other events suggests these messages can affect market interest rates across maturities, help investors anticipate policy changes and, over time, have an impact comparable to formal policy announcements, particularly at longer maturities.

The ECB says the challenge is greater when trying to reach households and firms rather than financial markets. When inflation is high, households tend to pay more attention, but they may also respond less to information they already know, making it more important for the central bank to tailor messages to the economic environment.

The speech concludes that clear and consistent communication remains critical when inflation is elevated, as attention to inflation rises and falls with price pressures themselves. For the ECB, that makes communication a practical policy tool as well as a means of accountability for an independent public institution.

As highlighted earlier, Europe macro policy debate weighed the trade-offs between inflation control, debt dynamics, and long-term investment.

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