Using US data, we estimate optimal policy with a probability below one that the Fed reneges on its commitment ("limited credibility") versus discretionary policy where the Fed reneges on its commitment at all periods with a probability equal to one ("zero credibility"). The transmission...

To our knowledge, this paper is the first to discuss the response of European energy commodity prices to unexpected monetary policy surprises from the European Central Bank. Using the Rigobon (2003) identification through heteroscedasticity method, we find a significant and positive response...