Bio : Professor Jörgen Weibull obtained his Master and PhD degrees from the Royal Institute of Technology in Stockholm, respectively in 1972 and 1978. In 1984 he joined the Institute for International Economics Studies, at Stockholm University as a researcher. In the two academic years 1989/90 and 1990/91 he was a visiting professor at the Economics department of Princeton University, where he taught game theory and mathematics. In 1991 he moved to Stockholm to a professorship in theoretical economics at Stockholm University and in 1995 he was called to the A.O. Wallenberg chair in Economics at the Stockholm School, a position he still holds. Professor Weibull is also part-time professor at Ecole Polytechnique, Paris. His main areas of research have been non-cooperative game theory, microeconomic theory and evolutionary game theory, with applications to economics. Apart from these activities he is a member of the Royal Swedish Academy of Sciences, and has served for many years on its prize committee for the Alfreed Nobel Memorial Prize in Economics. He is also a fellow of Econometric Society, and has served as department chair at the Stockholm School. Professor Weibull obtained several awards such as The Torsten and Ragnar Söderberg Prize in Economic Science in 1999 and is author of the well-known book "Evolutionary Game Theory".