Ehud Kalai is the James J. O’Connor Distinguished Professor of Decision and Game Sciences in the Kellogg School of Management at Northwestern University. He also holds a professorship of mathematics in Northwestern’s College of Arts and Sciences. Dr. Kalai’s research is in the areas of game theory, economics, and the interface of game theory with operations research and computer science. He pioneered studies of strategic rational learning and the robustness of large games and made major contributions to the subjects of cooperative game theory and bargaining, social choice, strategic algorithms, and strategic complexity. Born in Israel, he received his B.A. degree from the University of California at Berkeley and a Ph.D. in mathematics from Cornell University in 1972. He then accepted an assistant professorship in statistics at Tel Aviv University. In 1975, Dr. Kalai moved to the Kellogg School where he was promoted to full professor in 1978, appointed the Charles E. Morrison Professor of Decision Sciences in 1982, and named to his present chair in 2001. He has coordinated the Nancy L. Schwartz Memorial Lecture series since its inception in 1982 and has been the director of the Kellogg Center for Strategic Decision-Making for the past twelve years. A fellow of the Econometric Society, he has been a Sherman Fairchild Scholar at the California Institute of Technology, a Distinguished Visitor at the University of California at San Diego, the Oskar Morgenstern Research Professor at New York University, and twice winner of the Outstanding Professor Award of Kellogg’s Executive Masters Program. He has delivered named lectures at the University of Pennsylvania, Tel Aviv University, the University of California at Los Angeles, and Tulane University among other institutions. Dr Kalai founded the journal Games and Economic Behavior in 1989 and continues to serve as its editor-in-chief. Together with Robert J. Aumann, he founded the international Game Theory Society in 1998 and served as its president for three years. He is a former member of the editorial boards of Mathematical Social Sciences and The Journal of Economic Theory and currently serves on the editorial board of the International Journal of Game Theory. His work, consisting of more than sixty articles, has been published in leading scholarly journals and other publications.