Marc Melitz is the David A. Wells Professor of Political Economy at Harvard University. His broad research interests are in international trade and investment. More specifically, he studies producer-level responses to globalisation and their implications for aggregate trade and investment patterns. Melitz holds a B.A. from Haverford College (1989), an M.S.B.A. from the Robert Smith School of Business (1992), and a Ph.D. from the University of Michigan (2000). He is a fellow of the Econometric Society and is affiliated with the National Bureau of Economic Research (NBER), the Centre for Economic Policy Research (CEPR), CESifo, and the Kiel Institute for the World Economy. His research has been funded by the Sloan Foundation and by the NSF.