A Logic for Social Influence through Communication

We propose a two dimensional \social network plausibility framework" to model doxastic influence through communication in a social network. To do so, we combine two approaches: on the one hand, a hybrid logic setting, to model the social network itself (who is related to whom), and on the other hand, dynamic epistemic logic, to model the distribution of beliefs among agents (who believes what) and belief changes induced by communication events (what is said to whom and how do the hearers revise their beliefs). Combining both, we show how to design some particular communication protocols in this new framework to represent some level of social doxastic influence, assuming that the communicating agents are sincere and trust each other.