Samuel Bowles, is at the Santa Fe Institute, recently published The Moral Economy: Why good incentives are no substitute for good citizens and is one of the authors of The Economy, a free online introduction to economics by the CORE Project. David S. Wilson is SUNY Distinguished Professor of Biology and Anthropology at Binghamton University and Arne Næss Chair in Global Justice and the Environment at the University of Oslo. Twitter: @David_S_Wilson