I am an associate professor of economics at the University of Wisconsin, where I hold the Mary Sue and Mike Shannon Chair in Economics, and I am the associate director of the Center for Research on the Wisconsin Economy. My research focuses on international economics, models of firm heterogeneity, and national income accounting (Google Scholar // IDEAS). I hold a B.S. in Economics from Bowling Green State University and a Ph.D. in Economics from the University of Minnesota.

I am also a research associate at the National Bureau of Economic Research and a special sworn employee of the U.S. Bureau of Economic Analysis, where I study the ways that multinational firms produce and sell goods and services around the world.

I am an associate editor of Economics Letters, the International Economic Review, and the Review of Economic Dynamics.  Among other things, I organize the Atlanta International Workshop with Simon Fuchs, Federico Mandelman and Vivian Yue.