Modeling the product diffusion based on the BA Scale-free networks

Different with the Bass Model that assume the consumers are fully-connected with identical influence, we describe the consumer adoption network is a BA Scale-free network, consumer´s decision making is influenced by the network heterogeneity and the joint influence of the close neighbor of nonadopted consumers who have adopted the product. The research shows that our model incorporating the network heterogeneity and the joint influence is mathematically consistent with the Bass model, but could describe more about the micro-level of the product diffusion dynamics. Empirical result show that the two factors are important.