While the 2008-2009 financial crisis originated in the United States, we witnessed steep declines in output, consumption and investment of similar magnitudes around the globe. This raises two questions. First, given the observed strong home bias in goods and financial markets, what can account...

Survey evidence shows that the relationship between the exchange rate and macro fundamentals is perceived to be highly unstable. We argue that this unstable relationship naturally develops when structural parameters in the economy are unknown. We show that the reduced form relationship between...

While the 2008-2009 financial crisis originated in the United States, we witnessed steep declines in output, consumption and investment of similar magnitudes around the globe. This raises two questions. First, given the observed strong home bias in goods and financial markets, what can account...

Recent episodes (October 2008, May 2010, August 2011) have witnessed huge spikes in equity price risk (implied volatility). Apart from their large size, several features characterize these risk panics. They are global phenomena, shared among a broad set of countries. There is substantial...

Nominal assets play a major role in international financial markets, while trade in indexed bonds is not empirically relevant. As a result, agents are generally exposed to both price and exchange rate uncertainty. Nonetheless, previous research on net capital flows has assumed the presence of a...

While empirical evidence nds only a weak relationship between nominal exchangerates and macroeconomic fundamentals, forex markets participants often attribute ex-change rate movements to a macroeconomic variable. The variables that matter, how-ever, appear to change over time and some variable...

Empirical evidence shows that macroeconomic fundamentals have little explanatory power for nominal exchange rates. On the other hand, the recent microstructure approach to exchange rates has shown that most exchange rate volatility at short to medium horizons is related to order flows. This...

Nominal rigidities due to menu costs have become a standard element in closed economy macroeconomic modeling. The "New Open Economy Macroeconomics" literature has investigated the implications of nominal rigidities in an open economy context and found that the currency in which prices are set...