Professor of Economics, 
Washington University
MSC 1208‐228‐308
One Brookings Drive
St. Louis, MO 63130-4899
Office: Seigle Hall 385
Phone: 314-935-5643
Email: petersen@wustl.edu
Before coming to Washington University in 1991, he taught at Northwestern University and was a senior economist at the Federal Reserve Bank in Chicago. His current research considers: i) are financing constraints quantitatively important for R&D and innovation?; ii) what types of financial development work best for funding R&D around the world? iii) how do firms buffer R&D when confronted with a financial crisis?