Here’s another installment in a series attempting to move the discussion from “my estimate vs. your estimate” (or “prior”, as the case may be) [1] [2] [3] [4] [5] [6] to something more constructive (and hopefully more nuanced). From the conclusion to “Expectations and Fiscal Stimulus” by Troy Davig and Eric M. Leeper:
This paper has embedded estimated Markov-switching rules for U.S. monetary and fiscal policy into an otherwise conventional calibrated DSGE model with nominal rigidities to deliver some quantitative predictions of the impacts of government
spending increases. When monetary and fiscal policy regimes vary — from active monetary/passive fiscal to passive monetary/active fiscal to doubly passive to doubly active — government spending multipliers can vary widely. An increase in government spending of $1 in present value raises output by $0.80 in present value under
[Active Money/Passive Fiscal] AM/PF, while it raises output by as much as $1.80 in present value when monetary policy is passive. In our simple model, this translates into a decrease in consumption of $0.20 in present value under AM/PF, but an increase in consumption of about $0.80 in present value under passive monetary policy.