Before revision: We address the phenomenon of sedimentation of opinions in networks and investigate how agents who never change their minds ("stubborn") can influence the opinion of a social group. This is done by means of the voter model in which users are divided in two camps and repeatedly update their opinions based on others they connect with. Assuming a proportion of the agents are stubborn , the distribution of opinions reaches an equilibrium .
After revision: We study the voter model for opinion dynamics on a complete graph with stubborn nodes .