Martijn van Zomeren is Professor of Cultural and Political Psychology of Social Relationships at the University of Groningen in the Netherlands. He received his PhD cum laude from the University of Amsterdam in 2006, received various dissertation awards, early career awards, and grants, and is an international expert on collective action, activism and social change. The main theme in his work is the importance of theoretical integration in the various fields that he has contributed to, as reflected in his 2016 book, published by Cambridge University Press, entitled From Self to Social Relationships: An Essentially Relational Perspective on Social Motivation.
John F. (Jack) Dovidio, who received his PhD from the University of Delaware in 1977, is currently the Carl Iver Hovland Professor of Psychology and Public Health, as well as Dean of Academic Affairs of the Faculty of Arts and Sciences at Yale University. His research interests are in stereotyping, prejudice, and discrimination; social power and nonverbal communication; and altruism and helping. His scholarship focuses on understanding the dynamics of intergroup relations and ways to reduce intergroup bias and conflict.