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Circles of Trust: Rival Information in Social Networks

Author

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  • Petra Persson
  • Nikita Roketskiy
  • Samuel Lee

Abstract

We analyze the diffusion of rival information in a social network. In our model, rational agents can share information sequentially, unconstrained by an exogenous protocol or timing. We show how to compute the set of eventually informed agents for any network, and show that it is essentially unique under altruistic preferences. The relationship between network structure and information diffusion is complex because the former shapes both the charity and confidentiality of potential senders and receivers.

Suggested Citation

  • Petra Persson & Nikita Roketskiy & Samuel Lee, 2021. "Circles of Trust: Rival Information in Social Networks," NBER Working Papers 29324, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:29324
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    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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