conventional and terrorist forces. Specifically, a family of diffusion processes is proposed to capture the terrorists' progress …

sales increase of over 400%. In contrast, most marketing textbooks as well as diffusion models generally depict the growth … researchers to examine the takeoff, no research has addressed this critical event. While diffusion models are commonly used to … study new product sales growth, they do not explicitly consider a new product's takeoff in sales. Indeed, diffusion …