Biographical note

Daan van Knippenberg is Professor of Organizational Behavior at the Rotterdam School of Management. He has published over 140 scholarly articles, books, and book chapters, including in such outlets as Academy of Management Journal, Annual Review of Psychology, Journal of Applied Psychology, Organization Science, and Organizational Behavior and Human Decision Processes, many of which revolve around his key research interests in leadership, diversity, creativity and innovation, and social identity processes in organizations. Daan is Founding Editor of Organizational Psychology Review and an associate editor of Journal of Organizational Behavior. He is also co-founder and director of the Erasmus Center for Leadership Studies, co-founder and co-organizer of the New Directions in Leadership Research conference organized by Duke University, Erasmus University, INSEAD, and The Wharton School, and a Fellow of the Society for Industrial and Organizational Psychology, and of the American Psychological Association Michael Hogg is Professor of Social Psychology at Claremont Graduate University. He is also an Honorary Professor of Psychology at the University of Kent and the University of Queensland. His research focuses on social identity processes within and between large and small groups, and he has published widely on topics including intergroup relations, group cohesion, leadership, group motivations, and conformity processes. Professor Hogg is co-editor of the journal Group Processes and Intergroup Relations, an associate editor of the Journal of Experimental Social Psychology, and Senior Consulting Editor for the SAGE Social Psychology Program. He is a fellow of the Society for Personality and Social Psychology, the Society for the Psychological Study of Social Issues, the Western Psychological Association, and the Academy of the Social Sciences in Australia.