External debt increases the vulnerability of indebted emerging market economies to macroeconomic volatility and financial crises. Capital account reversals often lead sovereign debt repayment crises that are only resolved after prolonged and difficult debt restructuring. Foreign indebtedness...

Currency crises are usually associated with large nominal and real depreciations. In some countries depreciations are perceived to be very costly (“fear of floating”). In this paper we try to understand the reasons behind this fear. We first look at episodes of currency crises in the 1990s...

This paper studies a version of Obstfeld's (1997) "escape clause" model. The model is calibrated to produce three rational expectations equilibria. Two of these equilibria are E-stable in the sense of Evans (1985), and one is unstable. Dynamics are introduced by assuming that agents must learn...

This paper models the causes of the 2008 financial crisis together with its manifestations, using a Multiple Indicator Multiple Cause (MIMIC) model. Our analysis is conducted on a cross-section of 107 countries; we focus on national causes and consequences of the crisis, ignoring crosscountry...

Speech to UCLA Symposium at UC Berkeley, Berkeley, California, October 30, 2008

Presentation to the Commonwealth Club of California, San Francisco CA, June 30, 2009

To understand Fed policy at this point, you have to look at this whole picture. We have good GDP growth, but a yawning shortfall of employment and output from potential levels. ; Presentation to the Chicago Booth Graduate School of Business Alumni Club of San Francisco, San Francisco, Ca,...

Speech to the Silicon Valley Chapter of Financial Executives International, Palo Alto, California, October 14, 2008.

Speech to the Asia Society of Southern California, Los Angeles, California, February 6, 2007