Many everyday activities are habitual. Among the most common human activities is communication. If people primarily communicate in a common-interests environment, they may form habits of truth-telling and believing messages. If they primarily communicate in a conflicting-interests environment,...

We study social learning in a social network setting where agents receive independent noisy signals about the truth. Agents naïvely update beliefs by repeatedly taking weighted averages of neighbors' opinions. The weights are fixed in the sense of representing average frequency and intensity of...