Jesper B. Sørensen received his AB from Harvard College and his PhD in Sociology from Stanford University. He is currently the Robert A. and Elizabeth R. Jeffe Professor and Professor of Organizational Behavior at the Stanford Graduate School of Business, and Professor in the Department of Sociology (by courtesy). Prior to working at Stanford, Professor Sørensen was at the University of Notre Dame (1995-1996), the University of Chicago (1996-2000), and the Massachusetts Institute of Technology (2000-2006).