This paper argues that maintaining price stability requires not only commitment to an appropriate monetary policy rule, but an appropriate fiscal policy rule as well. 'Ricardian equivalence' does not imply that fiscal policy is irrelevant, except in the case of a certain class of policies...

This paper derives loss functions for monetary policy that are grounded in the welfare of private agents, for optimizing models with nominal price rigidities. Inflation stabilization enhances welfare, insofar as variable inflation results in real distortions when prices are not adjusted...