The 2007-2009 financial crisis generated a striking short-lived increase in the employment separation rate and a persistent decrease in its finding probability, which resulted in an increase in unemployment and a slow recovery. In this paper we propose a novel mechanism that can account for...

We inject aggregate uncertainty - risk and ambiguity - into an otherwise standard business cycle model and describe its consequences. We find that increases in uncertainty generally reduce consumption, but they do not account, in this model, for either the magnitude or the persistence of the...

We inject aggregate uncertainty — risk and ambiguity — into an otherwise standard business cycle model and describe its consequences. We find that increases in uncertainty generally reduce consumption, but they do not account, in this model, for either the magnitude or the persistence of the...

Historically-high levels of public debt have recently raised numerous concerns regarding fiscal policy. In particular, should governments tax more, spend less, or do both to manage high public debt? Also, given the uncertainty about the strength of the economic recovery, what is the suitable...