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Curtailing False News, Amplifying Truth

Author

Listed:
  • Sergei Guriev

    (Institut d'Études Politiques [IEP] - Paris)

  • Emeric Henry

    (Institut d'Études Politiques [IEP] - Paris)

  • Théo Marquis

    (Institut d'Études Politiques [IEP] - Paris)

  • Ekaterina Zhuravskaya

    (PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, PJSE - Paris Jourdan Sciences Economiques - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)

Abstract

We develop a comprehensive framework to assess policy measures aimed at curbing false news dissemination on social media. A randomized experiment on Twitter during the 2022 U.S. mid-term elections evaluates such policies as priming the awareness of misinformation, fact-checking, confirmation clicks, and prompting careful consideration of content. Priming is the most effective policy in reducing sharing of false news while increasing sharing of true content. A model of sharing decisions, motivated by persuasion, partisan signaling, and reputation concerns, predicts that policies affect sharing through three channels: (i) updating perceived veracity and partisanship of content, (ii) raising the salience of reputation, and (iii) increasing sharing frictions. Structural estimation shows that all policies impact sharing via the salience of reputation and cost of friction. Affecting perceived veracity plays a negligible role as a mechanism in all policies, including fact-checking. The priming intervention performs best in enhancing reputation salience with minimal added friction.

Suggested Citation

  • Sergei Guriev & Emeric Henry & Théo Marquis & Ekaterina Zhuravskaya, 2023. "Curtailing False News, Amplifying Truth," PSE Working Papers halshs-04315924, HAL.
    • Handle: RePEc:hal:psewpa:halshs-04315924
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-04315924
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    JEL classification:

    • P00 - Political Economy and Comparative Economic Systems - - General - - - General

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