This article suggests that the logistic growth equation is the model underlying media diffusion. The logistic is shown to be a good fit to the diffusion of U.S. communication media such as radio, TV, cable, VCR, and the home computer. This article proposes that the r and K parameters of the...

Over the last decade, the Internet has become one of the most popular vehicles facilitating a variety of communication and information-sharing tasks worldwide. Its growing popularity as a new medium of communication has resulted in changes in use of traditional media. The purpose of this study...

This article briefly reviews research on the principle of relative constancy and concludes that further research using aggregate consumer and advertiser spending data should be suspended because the principle does not represent a theoretically based hypothesis but is simply an unexplained...