Before revision:  We assume that rational (Bayesian) agents in this network make private measurements , and observe the decisions of their neighbors until they accumulate sufficient evidence to make an irreversible choice . As each agent communicates its decision to those observing it, the flow of social information is described by a directed graph. The decision-making process in this setting is intuitive, but can be complex. We describe when and how the absence of a decision of a neighboring agent communicates social information, and how an agent must marginalize over all unobserved decisions.
After revision:  We assume that rational (Bayesian) agents in this network make private measurements , and observe the decisions of their neighbors until they accumulate sufficient evidence to make an irreversible choice between two options. The resulting information exchange dynamics has interesting properties: When one option is preferred, the absence of a decision can be increasingly informative over time. In recurrent networks an absence of a decision of a neighboring agent communicates social information, and how an agent must marginalize over all unobserved decisions.