let's not forget tie strength:
Valente, T. W., & Vlahov, D. (2001). Selective risk taking among needle
exchange participants in Baltimore: Implications for supplemental
interventions. American Journal of Public Health, 91, 406-411.
or individual variation in susceptibility to infection or social influence ...
Valente, T.W. (1996). Social network thresholds in the diffusion of
innovations. Social Networks, 18, 69-89.
Valente, T.W. (1995). Network models of the diffusion of innovations.
Cresskill, NJ: Hampton Press.
Thomas W. Valente, PhD
Director, Master of Public Health Program
Department of Preventive Medicine
School of Medicine
University of Southern California
1000 Fremont Ave.
Building A Room 5133
Alhambra CA 91803
phone: (626) 457-6678
fax: (626) 457-6699
email: [log in to unmask]