Diffusion of innovations - Wikipedia

Theories of innovation diffusion
French sociologist Gabriel Tarde originally claimed that sociology was based on small psychological interactions among individuals, especially imitation and innovation.
Diffusion of innovations theory was formalized by Everett Rogers in a 1962 book called Diffusion of Innovations. Rogers stated that adopters of any new innovation or idea could be categorized as innovators (2.5%), early adopters (13.5%), early majority (34%), late majority (34%) and laggards (16%), based on a bell curve. Each adopter's willingness and ability to adopt an innovation would depend on their awareness, interest, evaluation, trial, and adoption. Some of the characteristics of each category of adopter include:

innovators - venturesome, educated, multiple info sources, greater propensity to take risk
early adopters - social leaders, popular, educated
early majority - deliberate, many informal social contacts
late majority - skeptical, traditional, lower socio-economic status
laggards - neighbours and friends are main info sources, fear of debt

Diffusion of innovations - Wikipedia, the free encyclopedia