This article examines monetary policy when it is constrained by the zero lower bound (ZLB) on the nominal interest rate. Our analysis uses a nonlinear New Keynesian model with technology and discount factor shocks. Specifically, we investigate why technology shocks may have unconventional...

This paper examines the stimulative effect of central bank forward guidance?the promise to keep future policy rates lower than its policy rule suggests?when the short-term nominal interest rate is stuck at its zero lower bound (ZLB).We utilize a standard New Keynesian model in which forward...

This article presents global solutions to standard New Keynesian models with a zero lower bound (ZLB) constraint on the nominal interest rate. Rather than focus on specific sequences of shocks, we provide the solution for all combinations of technology and discount factor shocks and a thorough...