作者簡介John Wagner, Michigan State University. Professor Wagner is currently Professor and Chair of the Department of Management in the Eli Broad College of Business and Graduate School of Management. He received his PhD in Business Administration from the University of Illinois – Urbana-Champaign in 1982. His primary Interests concern organizational behavior and organization theory, and include research on the effects of size, participation, and collectivism on performance, and cooperation in the workplace. Professor Wagner has published in journals such as Administrative Science Quarterly, the Academy of Management Journal, the Academy of Management Review, and Organizational Behavior and Human Decision Processes. He is a member of the editorial boards of Administrative Science Quarterly and the Academy of Management Review and belongs to the Academy of Management and the Decision Sciences Institute. He was a recipient, in 1989, of the Scholarly Achievement Award given by the Human Resources Division of the Academy of Management, and in 1993 he received the Walter de Gruyter Best Paper Award presented by the Academy of Management's Research Methods Division.