Central banks

Beware of large shocks! A non-parametric structural inflation model

We propose a novel empirical structural inflation model that captures non-linear shock transmission using a Bayesian machine learning framework that combines VARs with non-linear structural factor models. Unlike traditional linear models, our approach allows for non-linear effects at all impulse response horizons. Identification is achieved via sign, zero, and magnitude restrictions within the factor model. Applying our method to euro area energy shocks, we find that inflation reacts disproportionately to large shocks, while small shocks trigger no significant response.

Beware of large shocks! A non-parametric structural inflation model

We propose a novel empirical structural inflation model that captures non-linear shock transmission using a Bayesian machine learning framework that combines VARs with non-linear structural factor models. Unlike traditional linear models, our approach allows for non-linear effects at all impulse response horizons. Identification is achieved via sign, zero, and magnitude restrictions within the factor model. Applying our method to euro area energy shocks, we find that inflation reacts disproportionately to large shocks, while small shocks trigger no significant response.

Long-term inflation expectations of consumers: an overview

This box explores the newly available five-year-ahead inflation expectations collected in the ECB Consumer Expectations Survey (CES). While consumers’ beliefs about longer-term inflation expectations are characterised by substantial heterogeneity and dispersion, the median five-year-ahead expectations have been close to the ECB's 2% inflation target since September 2024. This relative stability contrasts with more variable one-year and three-year expectations, which have been more sensitive to actual changes in inflation.

Why monetary policy should crack down harder during high inflation

The recent surge in inflation has led to a significant increase in the frequency of price changes, making prices more flexible. Conventional models assume a constant price change frequency, but in state-dependent models the frequency varies with economic conditions. Price flexibility has an impact on the effectiveness of monetary policy. In high inflation periods, frequent price changes make monetary policy more effective in reducing inflation with less impact on economic activity. Therefore, monetary policy should be more aggressive during such periods to stabilise prices efficiently.

The macroeconomic impact of euro area discretionary fiscal policy measures since the start of the pandemic

This box provides a model-based analysis of the impact of discretionary fiscal policy measures on economic growth and inflation since the start of the COVID-19 pandemic, as reflected in the March 2025 ECB staff macroeconomic projections for the euro area. Fiscal policy lent substantial support to the euro area economy in response to the pandemic and the energy crisis, while adding to public deficits and debt.

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