University of Nottingham, School of Economics

Hoogleraar Sociale Psychologie, VU University

Emeritus Professor of Psychology, Michigan State University

Professor of Mathematical Biology, University of British Columbia, Vancouver

Professor of Human Cooperation, VU Amsterdam

Associate Professor, Psychological and Brain Sciences, University of Delaware

Professor Emeritus of Psychology, University of Richmond

Professor in Economics, University of Cologne

Professor of Sociology, Utrecht University

Professor of Management, George Mason University