Robust Monetary Policy under Model Uncertainty and Inflation Persistence.

This paper examines the relationship between the preference for ro- bustness of central bank (when it fears that its model is misspecified), the inflation persistence and the output cost of disinflation. Using a simple monetary game model in which higher preference for robustness of central bank is positively associated with the inflation persistence and thus nega- tively with the speed of disinflation, this paper shows that the output cost of disinflation is higher when the less the central bank believes that its reference model is robust.