Posts tagged ‘diffusion’
Right hand figure: two networks joined “loosely” by a single person, only slighetly engaged with either network. Was said to be a Prof. who sat on both communities [and therefore knew what both were doing] but did not really engage in their work.
Those people able to stimulate innovation have lots of WEAK ties which join communities. — This is the “strength of weak ties” principle.
The 1954 study is meant to be in Roger’s Diffusion of Innovations book…
Although this guy says 1954, everyone else seems to be citing a 1966 Colemand, Katz and Menzel paper:
Coleman, J.S., E. Katz and H. Menzel (1966) Medical Innovation: A Diffusion Study. The Bobby-Merrill, New York.
This (looks good): http://www.infoamerica.org/documentos_pdf/difusion_teoria.pdf
suggests there are three early Coleman et al papers, none of which were in 1954:
Coleman, James S.; Katz, Elihu & Menzel, Herbert. (1957). The diffusion
of an innovation among physicians. Sociometry 20: 253-270.
Coleman, James S.; Katz, Elihu & Menzel, Herbert. (1959). Social processes
in physicians’ adoption of a new drug. Journal of Chronic Diseases. 9: 1-19.
Coleman, James S.; Katz, Elihu & Menzel, Herbert. (1966). Medical
Innovation: A Diffusion Study. New York: Bobbs-Merrill.
there was a “movement” from 1954-1957, however.
Dr. Derek S. Thomson 