This paper develops a model of policy regime uncertainty and its consequences for stabilizing expectations. Because of learning dynamics, uncertainty about monetary and fiscal policy is shown to restrict, relative to a rational expectations analysis, the set of policies consistent with...

In dieser Studie werden die Effekte von Geld- und Fiskalpolitik auf Konsumentenerwartungen in Szenarien von hohem und niedrigem öffentlichen Schuldenstand empirisch untersucht. In Reaktion auf einen Anstieg der Staatsausgaben steigen Konsumpläne bei niedrigem, fallen jedoch bei hohem...

I develop a model that explicitly takes the role of financial institutions in the transmission mechanism of monetary policy into account. Within this model, I find various equilibrium environments, with one of them resembling a standard environment for monetary policy and another one akin to a...

I develop a new monetarist model to analyze why an economy can fall into a liquidity trap, and what the effects of unconventional monetary policy measures such as helicopter money and negative interest rates are under these circumstances. I find that liquidity traps can be caused by a decrease...