noun
diffusion of innovation theory
A technical term in marketing and sociology, referring to Everett Rogers' theory on how new ideas and technologies spread through populations.
イノベーター理論は、新製品の普及過程を説明するのに使われる。
Diffusion of innovation theory is used to explain the adoption process of new products.
普及学 is a broader term for diffusion studies, while イノベーター理論 specifically refers to Rogers' innovation diffusion model.
From English 'innovator' + 理論 (theory). The term is a direct translation of 'diffusion of innovation theory'.