The paper derives conditions for ex ante efficient intergenerational risk sharing in overlapping generations models. I show how the efficiency of a fiscal policy can be evaluated without distributional judgments, I derive efficiency conditions, and then examine specific models. For models with...

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...

This article complements the structural New-Keynesian macro framework with a no-arbitrage term structure model. Whereas our methodology is general, we focus on an extended macro-model with an unobservable time-varying markup and stochastic risk aversion. Term structure information helps to...

In this paper, we put forward a theory of the optimal capital structure of the firm based on Jensen's (1986) hypothesis that a firm's choice of capital structure is determined by a trade-off between agency costs and monitoring costs. The problem of determining the optimal capital structure of...

We augment a standard global coordination game along the lines of Morris and Shin (1998) by an asset market where prices are determined in a noisy Rational Expectations Equilibrium. We study the implications of information aggregation through prices for equilibrium selection arguments in global...

If borrowing capacity of indebted households is tied to the value of their home, house prices should enter a correctly specified aggregate Euler equation for consumption. I develop a simple two-agent, dynamic general equilibrium model in which home (collateral) values affect debt capacity and...

We investigate a two-country model of real business cycles along the lines of Backus, Kehoe, and Kydland (1992) with one new feature: country one residents are ambiguous [along the lines of Epstein (2001)] about the productivity shocks of country two and vice versa. The model is calibrated and...