McCallum, Bennett T. - Institute for Monetary and Economic Studies, Bank of Japan - 2009
It is well known that the concept of "determinacy"-a single stable solution-plays a major role in contemporary monetary … policy analysis. But while determinacy is desirable, other things equal, it is not necessary for a solution to be plausible … and is not sufficient for a solution to be desirable. There is a related but distinct criterion of "learnability" that …