Jon Elster is Professor of Rationalitï¿½ et sciences sociales at College de France, and Robert K. Merton Professor of Social Sciences at Columbia University. He is author of Closing the Books: Transitional Justice in Historical Perspective .
Ross D. Parke is Distinguished Professor of Psychology and director of the Center for Family Studies at the University of California, Riverside. He is a past President of Division 7, the Developmental Psychology Division, of the American Psychological Association, and in 1995 received the g. Stanley Hall Award from this APA division. Park was elected a Fellow of the American Association for the Advancement of Science in 1997. He is currently editor of theJournal of Family Psychology and has served as editor of Developmental Psychology and as associate editor of Child Development. Parke is author of Fatherhood; co-author of The Throwaway Father, with Armin Brott; and co-editor of Family-Peer Relationships: In Search of the Linkages, with Gary Ladd, Children in Time and Place, with Glen Elder and John Modell, and Exploring Family Relationships with other Social Contexts, with Sheppard Kellam. Parke's research has focused on early social relationships in infancy and childhood. He obtained his Ph.D. from the University of Waterloo, Ontario, Canada and is well known for his early work on the effects of punishment, aggression, and child abuse and for his work on the father's role in infancy and early childhood. His current work focuses on the link between family and peer social systems and on the impact of economic stress on families of diverse ethnic backgrounds.
Social Development, Arizona State University.