Regime-switching rational expectations models, in which the parameters of the model evolve according to a finite state Markov process, have properties that differentiate them from linear models. Issues that are well understood in linear contexts, such as equilibrium determinacy and stability...

This paper examines the implications of forward- and backward-looking monetary policy rules in an environment with monetary-fiscal interactions. We find that the unique stationary rational expectations equilibrium (REE) is always non-Ricardian under simple implementable monetary policy rules....

This paper shows that belief-driven economic fluctuations are a general feature of many determinate macroeconomic models. In environments with hidden state variables, forecast-model misspecification can break the link between indeterminacy and sunspots by establishing the existence of...