Kevin T. Leicht is Associate Professor of Sociology at the University of Iowa. He is the current editor of Research in Social Stratification and Mobility and The Sociological Quarterly, and coordinator of the gender, work, and family network for the Society for the Advancement of Socioeconomics.

Mary L. Fennell is Professor of Sociology at Brown University. She is the co-author of The Diffusion of Medical Innovations: An Applied Network Analysis (1988).