HEC Montréal, Canada, May 2 - 4, 2011
2011 Optimization Days
HEC Montréal, Canada, 2 — 4 May 2011

TAP Séance plénière III / Plenary Session III
May 3, 2011 09:00 AM – 10:00 AM
Location: Amphithéâtre IBM
1 Presentation
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09:00 AM - 10:00 AM
Opinion Dynamics and Learning in Social Networks
We provide an overview of recent research on belief and opinion dynamics in social networks. We discuss both Bayesian and non-Bayesian models of social learning and focus on the implications of the form of learning (e.g., Bayesian vs. non-Bayesian), the sources of information (e.g., observation vs. communication), and the structure of social networks in which individuals are situated on three key questions: (1) whether social learning will lead to consensus, i.e., to agreement among individuals starting with different views; (2) whether social learning will effectively aggregate dispersed information and thus weed out incorrect beliefs; (3) whether media sources, prominent agents, politicians and the state will be able to manipulate beliefs and spread misinformation in a society.