Shane R. Thye is a Professor of Sociology at the University of South Carolina. He works in the general area of socialpsychology and group dynamics. He has published articles in the American Sociological Review, American Journal of Sociology, Social Forces, and Social Psychology Quarterly. He is the author of two books and seriesco-editor of Advances in Group Processes. Edward J. Lawler is the Martin P. Catherwood Professor Emeritus of Industrial andLabor Relations and Professor of Sociology at Cornell University. He has co-authored three books and edited orco-edited 31 volumes in the annual series, Advances in Group Processes. In 2001, he received the Cooley-Mead Award for career achievement from the Social Psychology Section of the American Sociological Association.