Monetary and fiscal policy under bounded rationality and heterogeneous expectations

The goal of this thesis is to use plausible and intuitive models of bounded rationality to give new insights in monetary and fiscal policy. Particular focus is put on the zero lower bound on the nominal interest rate, forward guidance, and fiscal consolidations. The thesis considers different forms of boundedly rational expectation formation and boundedly rational decision making by households and firms in the economy. Such bounded rationality effects the propagation of monetary and fiscal policy. The research in this thesis complements the macroeconomic literature that assumes rational expectations by providing new policy implications as well as by providing robustness to existing results.