Welcome to the website of the Peer Relations Researchers Rotterdam (shorthand PRR-EUR) an interdisciplinary network within Erasmus University Rotterdam that brings together researchers who perform high-quality scientific research on peer relationships. Our members come from different faculties and departments, and are embedded in different disciplines, including but not limited to Pedagogical Sciences, Educational Sciences, Economics, Psychology, Sociology, Communication Science and Criminology. What brings us together is a strong fascination for peer relationships and their wide-ranging effects on both individuals and society.