title: Social percolation and the influence of mass media
abstract: In the marketing model of Solomon and Weisbuch, people buy a product only if their neighbours tell them of its quality, and if this quality is higher than their own quality expectations. Now we introduce additional information from the mass media, which is analogous to the ghost field in percolation theory. The mass media shift the percolative phase transition observed in the model, and decrease the time after which the stationary state is reached
keyphrases: social percolation quality expectations ghost field percolative phase transition stationary state mass media influence Solomon-Weisbuch marketing model customers cinema external field