Samuel Bowles is Research Professor and Director of the Behavioral Sciences Program at the Santa Fe Institute and Professor of Economics at the University of Siena. He is coauthor of "Notes and Problems in Microeconomic Theory" (North Holland Texts in Mathematical Economics) and "Schooling in Capitalist America" (Basic Books), and has published articles, most recently, in the "American Economic Review, Nature", the "Quarterly Journal of Economics", the "Economic Journal", and the "Journal of Theoretical Biology".