This paper derives the optimal lending contract in the financial accelerator model of Bernanke, Gertler and Gilchrist (BGG). The optimal contract includes indexation to the aggregate return on capital, household consumption, and the return to internal funds. This triple indexation results in a...

Recent monetary policy experience suggests a simple test for models of monetary non-neutrality. Suppose the central bank pegs the nominal interest rate below steady state for a reasonably short period of time. Familiar intuition suggests that this should be inflationary. We pursue this simple...

This paper revisits the size of the fiscal multiplier. The experiment is a fiscal expansion under the assumption of a pegged nominal rate of interest in linearised sticky price model. We demonstrate that a quantitatively important issue is the articulation of the exit from the policy experiment....

We show that interest rate rules that feed back on the growth rates of target variables (such as output or asset prices) may induce recessions in the presence of a zero lower bound, through purely self-fulfilling dynamics. This pathology is illustrated in a small New Keynesian model with...