This paper analyses the optimal degree of flexibility under a Lucas type convex Phillipscurve. As a benchmark, we first analyse optimal monetary policy with a linear Phillipscurve and persistent cost-push shocks. As in Svensson (1997a), a central banker who possesses private information and who...

Central bank transparency has become the topic of a lively public and academic debate on monetary policy. Unfortunately, it has been complicated by the fact that transparency is a qualitative concept that is hard to measure. This paper proposes a comprehensive index for central bank transparency...