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....

Motivated by the U.S. events of the 2000s, we address whether a too low for too long interest rate policy may generate a boom-bust cycle. We simulate anticipated and unanticipated monetary policies in state-of-the-art DSGE models and in a model with bond financing via a shadow banking system, in...