Rumors and Social Networks
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, which is initially unknown. One agent learns the 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 papers hows how a social network can serve as a filter. Agents block messages from parts of the network that contain many biased agents; the messages that circulate may be incorrect but sufficiently informative as to the correct decision.
|Date of creation:||Mar 2014|
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407R, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
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- Timothy G. Conley & Christopher R. Udry, 2000. "Learning About a New Technology: Pineapple in Ghana," Working Papers 817, Economic Growth Center, Yale University, revised May 2004.
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