In this paper we present a simple New Keynesian-style model of debt-driven slumps -- that is, situations in which an overhang of debt on the part of some agents, who are forced into rapid deleveraging, is depressing aggregate demand. Making some agents debt-constrained is a surprisingly powerful...

We propose a theory to explain why, and under what circumstances, a politician gives up rent and delegates policy tasks to an independent agency. We apply this theory to monetary policy by extending a standard dynamic ""New-Keynesian"" stochastic general equilibrium model. This model gives a new...

This paper examines the effects of quantitative easing implemented by the Bank of Japan (BoJ) since early 2001, looking specifically at the impact on inflation expectations and real asset prices. It suggests a number of possible channels through which quantitative easing may have exerted...

I model deflation, at zero nominal interest rate, in a microfounded general equilibrium model. I show that deflation can be analyzed as a credibility problem if the government has only one policy instrument, money supply carried out by means of open market operations in short-term bonds, and...

Tax cuts can deepen a recession if the short-term nominal interest rate is zero, according to a standard New Keynesian business cycle model. An example of a contractionary tax cut is a reduction in taxes on wages. This tax cut deepens a recession because it increases deflationary pressures....