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Affective Polarization, Media Outlets, and Opinion Dynamics

Author

Listed:
  • Della Lena, Sebastiano
  • Merlino, Luca Paolo
  • Zenou, Yves

Abstract

We study opinion dynamics in a social network consisting of two groups. Agents update their opinions by conforming to the opinions of agents from their group and not conforming to the opinions of people from the other group (affective polarization) and by listening a media outlet that is a possible biased source of information. We characterize the long-run opinions and provide the conditions under which affective polarization and media outlet lead to ideological polarization. We also study the effect of homophily and group size on long-run opinions when agents in the same group are homogeneous.

Suggested Citation

  • Della Lena, Sebastiano & Merlino, Luca Paolo & Zenou, Yves, 2023. "Affective Polarization, Media Outlets, and Opinion Dynamics," CEPR Discussion Papers 18508, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:18508
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    More about this item

    Keywords

    Social Networks; Polarization; Identity; Homophily;
    All these keywords.

    JEL classification:

    • C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory
    • D7 - Microeconomics - - Analysis of Collective Decision-Making
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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