David Besanko is the Alvin J. Huss Distingusihed Professor of Management and Strategy at the Kellogg Graduate School of Management at Northwestern University. He is currently serving as Associate Dean for Curriculum and Teaching at the Kellogg School. He received his AB in Political Science from Ohio University in 1977, his MS in Managerial Economics and Decision Sciences from Northwestern University in 1980, and his PhD in Managerial Economics and Decision Sciences from Northwestern University in 1982. Before joining the Kellogg factory in 1991, Professor Besanko was a member of the faculty of the School of Business at Indiana University from 1982 to 1991. In addition, in 1985 he held a post--doctorate position on the conomics Staff at Bell Communications Research. Professor Besanko teaches courses in the fields of Management and Strategy, Competitive Strategy, and Managerial Economics. In 1995, the graduating class at Kellogg awarded Professor Besanko the L.G. Lavengood Professor of the Year, the highest teaching honor a faculty member at Kellogg can receive. At the Kellogg School, he has also received the Sidney J. Levy Teaching Award (1998, 2000) and the Chair's Core Teaching Award (1999, 2001). Ronald R. Braeutigam is the Harvey Kapnick Professor of Business Institutions in the Department of Economic and the Transportation Center at Northwestern University. He is Director of the Business Institutions Program. He received a Bachelor of Science in Petroleum Engineering from the University of Tulsa in 1970 and then attended Stanford University, where he received an MSc in Engineering and a PhD in Economics in 1976. He has taught at Stanford University and the California Institute of Technology, and he has also held an appointment as a Senior Research Fellow at the Wissenschaftszentrum Berlin (Science Center Berlin).