Contagion and diversity of preference

There are growing interests for studying collective behavior including the dynamics of markets, the emergence of social norms and conventions, and collective phenomena in daily life such as traffic congestion. In this paper, we deal with collective behavior in population with several social networks. We showed that collective behavior in cooperative relationships is affected in the structure of the social network and under the heterogeneity of preference. We showed that collective behavior is affected by clustering coefficient. In regular network and small world network for a homogeneous preferences population, minority choice has a chance to spread throughout in the population. This is when the standardized clustering coefficient is low. We showed that collective behavior is affected by standard deviation. In population of uniform distribution and two-sided distribution, minority choice has a chance to spread throughout in the population. This is when standardized deviation is high. Then, we found that clustering coefficient affects on collective behavior in any preferences. On the other hands, collective behavior in diverse population is hard to forecast.