Rumors and Social Networks
نویسندگان
چکیده
Why do people spread rumors? This paper studies the transmission of possibly false information—by rational agents who seek the truth. Unbiased agents earn payoffs when a collective decision is correct in that it matches the true state of the world. Biased agents desire a particular decision regardless of the true state. One agent possibly learns the true underlying state and chooses whether to send a true or false message to her friends and neighbors, who then decide whether or not to transmit it further. The paper finds that a social network can serve as a filter: unbiased agents block messages from parts of the network that contain many biased agents, reducing the amount of false information. To maximize transmission of messages, it can serve biased agents to limit their number and spread themselves throughout the network.
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