Access to information in word of mouth marketing within a cellular automata model

We propose a simple microscopic model of consumer behavior in which decisions are made solely on the basis of person to person communication. Within our model we determine which factors are important in word of mouth marketing. We provide both Monte Carlo simulations, as well as mean-field analytical calculations and show that both the average decision time and uncertainty of decision grow nonlinearly with the amount of information up to a certain threshold value.