Kydland and Prescott (1977) show that optimal policy proves inconsistent because of rational expectations. This paper shows that the inconsistency of optimal policy comes from the inconsistency of the social loss function with the economic structure. As a result, we delegate to the central bank...

This paper uses two game-theory models, where monetary policy is first ineffective and then effective, to illustrate a delegation scheme that makes consistent policy optimal and controllable. The delegation scheme produces the minimization of both the social and the central bank loss functions....

The inconsistency of optimal policy comes from inconsistency between the social loss function and the economic structure. Accordingly, this paper designs a central bank loss function, which proves consistent with the economic structure. Under the designed central bank loss function discretionary...

The Tinbergen Rule states that achieving the desired targets requires an equal number of instruments. This paper shows that time inconsistency does not exist in the case of an equal number of instruments and targets. Target uncontrollability and time inconsistency, however, emerge as problems in...