We would like to thank the following colleagues, who were involved in earlier phases of the U.S. Competitiveness Project research: Steve Charnovitz, Stacey M. Childress, Daniel C. Esty, Robin Greenwood, Allen S. Grossman, Thomas A. Kochan, Robert Z. Lawrence, Josh Lerner, David A. Moss, Gary P. Pisano, William A. Sahlman, Kevin W. Sharer, Willy C. Shih, Richard H.K. Vietor, and Matthew C. Weinzierl.