This paper takes stock of the literature on the unconventional monetary policies, from their implementation to their effects on the economy. In particular, we discuss in detail the two main measures implemented in most developed economies, namely forward guidance and large-scale asset purchases....

We quantify the macroeconomic effects of the European Central Bank's unconventional monetary policies using a DSGE model which includes a set of shadow interest rates. Extracted from the yield curve, these shadow rates provide unconstrained measures of the overall stance of monetary policy....

In response to the 2008-2009 crisis, faced with distressed financial intermediaries, the ECB embarked in long-term refinancing operations (LTROs). Using an estimated DSGE model with a frictional banking sector, we find that such liquidity injections can have large macroeconomic effects, with...