TY - JOUR AU - Lustig,Hanno AU - Roussanov,Nikolai AU - Verdelhan,Adrien TI - Common Risk Factors in Currency Markets JF - National Bureau of Economic Research Working Paper Series VL - No. 14082 PY - 2008 Y2 - June 2008 UR - http://www.nber.org/papers/w14082 L1 - http://www.nber.org/papers/w14082.pdf N1 - Author contact info: Hanno Lustig UCLA Anderson School of Management 110 Westwood Plaza, Suite C413 Los Angeles, CA 90095-1481 Tel: 310/825-1011 Fax: 310/825-9528 E-Mail: hlustig@anderson.ucla.edu Nikolai Roussanov University of Pennsylvania Wharton School, Finance Department 2400 Steinberg-Dietrich Hall 3620 Locust Walk Philadelphia, PA 19104-6367 Tel: 215/746-0004 Fax: 215/898-6200 E-Mail: nroussan@wharton.upenn.edu Adrien Verdelhan MIT Sloan School of Management 100 Main Street, E62-621 Cambridge, MA 02142 Tel: 617/253-5123 E-Mail: adrienv@mit.edu AB - We identify a 'slope' factor in exchange rates. High interest rate currencies load more on this slope factor than low interest rate currencies. As a result, this factor can account for most of the cross-sectional variation in average excess returns between high and low interest rate currencies. A standard, no-arbitrage model of interest rates with two factors - a country- specific factor and a global factor - can replicate these findings, provided there is sufficient heterogeneity in exposure to the global risk factor. We show that our slope factor is a global risk factor. By investing in high interest rate currencies and borrowing in low interest rate currencies, US investors load up on global risk, particularly during bad times. ER -