We estimate a reaction function for the European Central Bank (ECB) using forecasts of economic growth and inflation as regressors. We detect a shift after Lehman Brothers failed in September 2008 when the pre-crisis reaction function indicates that the zero lower bound may become a constraint....

We estimate empirical reaction functions for the European Central Bank (ECB) with ordered-probit techniques, using the ECB's Monthly Bulletin to guide the choice of variables. The results show that policy reacts to the state of the real economy, M3 growth, and exchange rate changes but not to...