| Sumario: | The article presents the author's response to the comments made by sociologist Stephen Black to his article "Sociometric Location and Innovativeness: Reformulation and Extension of the Diffusion Model," published in the April 1970 issue of the journal "American Sociological Review." According to the author, Black fails to mention the few really interesting studies of psychological characteristics of innovators which suggest the worthwhileness of including some of these personality inventories in research on innovation. Regarding the author's own study, Black postulates the existence of psychological factors which would precede both centrality and time of adoption in some causal arrangement. Moreover, according to the author, an important element in his proposed model of the diffusion process is the argument that motivation for innovativeness is dependent upon the outcome of a kind of psychological "cost-benefit analysis," where the psychological variables are "desire to obtain, maintain, or increase prestige and professional status" and "perceived risks of adoption."
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