"We analyze optimal monetary policy in an endogenous sticky price model. Similar models with exogenous sticky prices can deliver multiplicity of equilibria. Multiplicity of equilibria is a necessary condition for expectation traps to explain the variation across time and countries of inflation...

"This paper summarizes recent developments in the theory and practice of monetary policy in a closed economy and explains what these developments mean for U.S. dollar policy. There is no conflict between what is appropriate U.S. monetary policy at home or abroad because the dollar is the world's...