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...

Recent proposals to reduce U.S. debt reveal large differences in their implied targets. These differences demonstrate the uncertainty surrounding future tax rates and long-run debt targets. We use a standard real business cycle model in which a Bayesian household learns about the state-dependent...

When monetary policy faces a zero lower bound (ZLB) constraint on the nominal interest rate, determinacy is not guaranteed even if the Taylor principle is satisfied when the ZLB does not bind. This paper shows the boundary of the determinacy region imposes a clear tradeoff between the expected...

When monetary policy faces a zero lower bound (ZLB) constraint on the nominal interest rate, a minimum state variable (MSV) solution may not exist even if the Taylor principle holds when the ZLB does not bind. This paper shows there is a clear tradeoff between the expected frequency and average...

Policy function iteration methods for solving and analyzing dynamic stochastic general equilibrium models are powerful from a theoretical and computational perspective. Despite obvious theoretical appeal, significant startup costs and a reliance on grid-based methods have limited the use of...

The U.S. faces exponentially rising entitlement obligations. I introduce a fiscal limit - a point where higher taxes are no longer a feasible financing mechanism - into a Perpetual Youth model to assess how intergenerational redistributions of wealth and the maturity of government debt impact...