We ask whether recent changes in monetary policy due to the financial crisis will be temporary or permanent. We present evidence from two surveys — one of central bank governors, the other of academic specialists. We find that central banks in crisis countries are more likely to have resorted...

Central banks, which used to be so secretive, are communicating more and more these days about their monetary policy. This development has proceeded hand in glove with a burgeoning new scholarly literature on the subject. The empirical evidence, reviewed selectively here, suggests that...