Consensus By Identifying Extremists
نویسنده
چکیده
Given a finite state space and common priors, common knowledge of the identity of an agent with the minimal (or maximal) expectation of a random variable implies “consensus”, i.e., common knowledge of common expectations. This “extremist” statistic induces consensus when repeatedly announced, and yet, with n agents, requires at most log2 n bits to broadcast.
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