Welcome to the Conflict and Cooperation Laboratory at Leiden University. This research group is led by Carsten De Dreu, Professor of Psychology at Leiden University. We integrate scientific methods from behavioral economics, psychology, computational modeling, and neurobiology to understand the origins, mechanisms, and consequences of cooperation and conflict within and between groups of people. We examine, for example, how environmental threat influences cooperation within groups, how norms for cooperation develop and change, and when intergroup conflict emerges and escalates. 

We are a part of the Unit for Social, Economic and Organizational Psychology and the Leiden Institute for Brain and Cognition at Leiden University. Our group is funded by the European Research Council, the Netherlands Science Foundation, and Leiden University.