Theoretical and Logical Issues in the Study of International Diffusion

This discussion attempts to explore the concepts of diffusion and contagion as well as the nature of diffusion/contagion effects, and to suggest how they might operate. Using a series of logical analyses to continue the exercise of unpacking the concept of diffusion, which was initially presented in Most and Starr (1980), we are led to the conclusion that such processes are both less mystical and troublesome than they have often appeared in the literature. We argue that spatial diffusion processes may be disaggregated. Rather than being unique, diffusion/contagion processes may be seen as one subfield of `linkage' politics; with direct diffusion relationships as specialized extra-societal (general linkage) phenomena.