DeLong, Bradford, Summers, Lawrence.
This paper examines logic and evidence bearing on the efficacy of fiscal policy in everely depressed economies. In normal times central banks offset the effects of fiscal policy. This keeps the policy-relevant multiplier near zero. It leaves no space for expansionary fiscal policy as a stabilization policy tool. But when inter-est rates are constrained by the zero nominal lower bound, discretionary fiscal policy can be highly efficacious as a stabilization policy tool. Indeed, under what we defend as plausible assumptions of temporary expansionary fiscal policies may well reduce long-run debt-financing burdens.
Πηγή: Brookings