Inflation deviations and monetary policy strategies

Philip R. Lane, Member of the Executive Board of the European Central Bank (ECB), delivered a keynote speech at the 15th workshop on exchange rates, co-organised by Banka Slovenije, Banca d’Italia, the Bank for International Settlements, the ECB, and the Nationale Bank van België/Banque Nationale de Belgique. The event included a visit to the Bank of Slovenia.

The speech comprised two parts: first, the appropriate monetary policy response to deviations of inflation from the ECB’s 2% medium-term target; second, analytical perspectives on the interaction between exchange rates and monetary policy.

The ECB’s monetary policy strategy aims for a symmetric 2% inflation target over the medium term, considering deviations as equally undesirable. The strategy allows for context-specific responses depending on the origin, magnitude, and persistence of inflation deviations, with flexibility to maintain anchored inflation expectations.

Small, transitory deviations generally do not require policy action due to transmission lags and limited impact. Conversely, large and persistent deviations warrant a monetary policy response, influenced by channels such as cost-of-living, real interest rates, inflation expectations, and communication risks.

For mid-sized, somewhat persistent deviations, the origin of the deviation influences the response. Supply-driven shocks, especially sectoral energy price shocks, may not necessitate active policy adjustments if underlying inflation dynamics remain stable. Analytical assessment of inflation measures and expectations guides decision-making, emphasizing a data-dependent, meeting-by-meeting approach under uncertainty.

The speech also addressed the interaction between exchange rates and monetary policy. The euro’s nominal and real effective exchange rates have fluctuated over time without a clear long-term trend. Recent appreciation against the US dollar, Chinese renminbi, and Asian currencies reflects risk sentiment shifts and monetary policy cycles.

Model-based simulations show that a 10% euro appreciation over several years leads to lower inflation, reduced GDP, and decreased trade volumes, primarily through trade deflators. Currency movements also influence financial conditions, with appreciation tightening financial conditions, as shown by the ECB’s Macro-Finance Financial Conditions Index.

Simulations of surprise monetary policy easing indicate that exchange rate depreciation amplifies effects on output and inflation, enhancing export competitiveness and trade balance improvements. Holding the exchange rate constant in models reduces these effects, demonstrating the exchange rate’s role in transmission mechanisms.

The ECB employs a comprehensive analytical framework to assess the macroeconomic impact of exchange rate movements and inflation deviations, ensuring policy responses are data-driven and context-specific.

For more details, visit the original speech at the ECB website: ECB Keynote Speech.