This paper develops the theoretical framework and studies discretionary non-cooperative monetary and fiscal policy stabilisation in a New Keynesian model, where the fiscal policymaker uses distortionary taxes as the policy instrument and operates with long periods between optimal adjustments of...

Using optimising policy framework, we build and estimate a small-scale DSGE model of the US, and tell the story of monetary and fiscal policy interactions in 1955-2018. We find that fiscal policy is important to identify shifts in monetary policy preferences, and it is shaped by the political...

We study stationary discretionary equilibria in dynamic linear-quadratic rational expectations models. Past papers have assumed that this is uniquely determined; we show that such models can have multiple equilibria in some situations. We demonstrate the existence of multiple discretionary...

This paper identifies leadership regimes in monetary-fiscal policy interactions in three countries, the UK, the US and Sweden. We specify a small-scale, structural general equilibrium model of an open economy and estimate it using Bayesian methods. We assume that the authorities can act...