We show that a model with imperfectly forecastable changes in future productivity and an occasionally binding collateral constraint can match a set of stylized facts about "sudden stop" events. "Good" news about future productivity raises leverage during times of expansion, increasing the...

Credit spreads display occasional spikes and are more strongly countercyclical in times of financial stress. Financial crises are extreme cases of this nonlinear behavior, featuring deep recessions and sharp losses in bank equity. We develop a macroeconomic model with a banking sector in which...

Emerging market economies often face sudden stops in capital inflows or reduced access to the international capital market, a development that can cause serious disruptions in economic activity. This paper analyzes what monetary policy can accomplish in such an event. Optimal monetary policy...

The financial crisis has prompted macroeconomists to think of new policy instruments that could help ensure financial stability. Policymakers are interested in understanding how these should be set in conjunction with monetary policy. We contribute to this debate by analyzing how monetary and...

One of the most striking features of the period before the Great Recession is the strong positive correlation between house price appreciation and current account deficits, not only in the United States but also in other countries that have subsequently experienced the highest degree of...