Image:Tarde_gabriel.gif '''Gabriel Tarde''' (March_12, 1843 in Dordogne, France – May_13, 1904 in Paris) French sociologist and social psychologist who conceived sociology as based on small Psychological interactions among individuals (much as if it were Chemistry), the fundamental forces being Imitation and Innovation. Among the concepts that Tarde initiated were the "group mind" (taken up and developed by Gustav_Le_Bon, and sometimes advanced to explain so-called Herd_behaviour or Crowd_psychology), and Economic_psychology, where he anticipated a number of modern developments. Everett_Rogers furthered Tarde's "laws of imitation" in the 1962 book Diffusion_of_innovations. == Works == *''La criminalité comparée'' (1890) *''La philosophie pénale'' (1890) *''Les lois de l'imitation'' (1890) *''Les transformations du droit. Étude sociologique'' (1891) *''Monadologie et sociologie'' (1893) *''La logique sociale'' (1895) *''Fragment d'histoire future'' (1896) *''L’opposition universelle. Essai d’une théorie des contraires''. (1897) *''Écrits de psychologie sociale'' (1898) *''Les lois sociales. Esquisse d’une sociologie'' (1898) *''L'opinion et la foule'' (1901) ==See also== *Technology_adoption *Diffusion_of_innovations *Innovation *Diffusion Tarde, Gabriel Tarde, Gabriel Tarde, Gabriel Tarde, Gabriel De:Gabriel_Tarde Es:Gabriel_de_Tarde Fr:Gabriel_Tarde Nn:Gabriel_Tarde Pt:Jean-Gabriel_de_Tarde