Before revision: We consider a Bayesian game of pure informational externalities, in which a group of agents learn a binary state of the world from conditionally independent private signals, by repeatedly observing the actions of their neighbors in a social network.
After revision: We consider a group of strategic agents who must each repeatedly take one of two possible actions. They learn which of the two actions is preferable from initial private signals, by repeatedly observing the actions of their neighbors in a social network.