This paper examines the optimal reaction of fiscal policy to permanent and transitory shocks to output in a model of tax and public consumption smoothing. The model predicts that optimal reaction of public expenditures and deficits to transitory shocks should be counter cyclical, while optimal...

This paper connects two salient economic features: (i) Fiscal shocks have asymmetric effects across business cycle phases (Gechert et al., 2019); (ii) Okun's coefficient is time varying and may be unstable. The intertwined dynamic behavior of fiscal shocks and unemployment-output trade-offs are...