When the zero lower bound on nominal interest rates binds, monetary policy cannot provide appropriate stimulus. We show that in the standard New Keynesian model, tax policy can deliver such stimulus at no cost and in a time-consistent manner. There is no need to use inefficient policies such as...

This paper analyzes the possibility and the consequences of rational bubbles in a dy- namic economy where financially constrained firms demand and supply liquidity. Bub- bles are more likely to emerge, the scarcer the supply of outside liquidity and the more limited the pledgeability of...

When the zero lower bound on nominal interest rates binds, monetary policy cannot provide appropriate stimulus. We show that in the standard New Keynesian model, tax policy can deliver such stimulus at no cost and in a time-consistent manner. There is no need to use inefficient policies such as...

When the zero lower bound on nominal interest rates binds, monetary policy cannot provide appropriate stimulus. We show that in the standard New Keynesian model, tax policy can deliver such stimulus at no cost and in a time-consistent manner. There is no need to use inefficient policies such as...

We propose a new model of exchange rates, based on the hypothesis that the possibility of rare but extreme disasters is an important determinant of risk premia in asset markets. The probability of world disasters as well as each country's exposure to these events is time-varying. This creates...

Three of the most important recent facts in global macroeconomics — the sustained rise in the US current account deficit, the stubborn decline in long run real rates, and the rise in the share of US assets in global portfolio — appear as anomalies from the perspective of...

efficiency gains can be sizable, but we find that most of the improvements can then attributed to the relaxation of borrowing constraints, rather than the introduction of savings distortions.

model. (JEL: E43, E44, F31, G12, G15)

The authors show that even when the exchange rate cannot be devalued, a small set of conventional fiscal policy instruments can robustly replicate the real allocations attained under a nominal exchange rate devaluation in a standard New Keynesian open economy environment. They perform the...

type="main" <p>Product quality certifiers may not reveal the identity of unsuccessful applicants/sellers for three reasons. First, they respond to the desire of individual sellers to avoid the stigma from rejection. Second, nontransparency helps a certifier to increase his market power by raising...</p>