Uncertainty is a challenge for monetary policy. This paper introduces model uncertainty into a behavioral New Keynesian DSGE framework to derive robust optimal monetary policies. We consider two potential forms of agents’ heterogeneity, which refer to two mechanisms of expectation formation...

During the recent inflation episode, the paradigm of separated objectives for monetary and fiscal policies has shown some limits. Fiscal policies have helped mitigate inflation. We advocate for the emergence of a new paradigm that gives equal consideration to fiscal and monetary policies and...