We study zero interest-rate policy in response to a large negative demand shock when long-run expectations can fall over time. Because falling expectations make monetary policy less effective by raising real interest rates, the optimal forward guidance policy makes large front-loaded promises to...

We study the extent to which the belief-formation process affects the dynamics of macroeconomic variables when the central bank uses forward guidance. Standard sticky-price models imply that far future forward guidance has huge and implausible effects on current outcomes, these effects grow in...