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Influence of Facebook algorithms on political polarization tested

A landmark collaboration shows that Facebook’s news feed filters partisan political news to users with the same views. But changing the feed algorithm to reduce exposure to like-minded content does not reduce political polarization.
  1. David Garcia

    1. David Garcia is in the Department of Politics and Public Administration and the Centre for Human | Data | Society, University of Konstanz, D-78457 Konstanz, Germany, and at the Complexity Science Hub Vienna, Vienna, Austria.

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Voters are polarized in many countries to the point at which they feel greater aversion to people with different political views than affection for like-minded people1. A common concern is that news-feed algorithms on social media could have a role in generating polarization by exposing individuals to more information from politically like-minded sources than they would otherwise see, thus creating ‘echo chambers’ and ‘filter bubbles’2. An often-proposed solution to this is to change these algorithms to reduce exposure to content from sources that agree with the users’ political views. Four papers, one3 from Nyhan et al. in Nature and three4–6 in Science, now describe the findings of the U.S. 2020 Facebook and Instagram Election Study, a remarkable collaboration between researchers at Meta (the company that owns Facebook and Instagram) and independent academics. The results cast light on the influence of social media on polarization, and expose the limits of making changes to news-feed algorithms in efforts to depolarize political attitudes.

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Nature 620, 39-41 (2023)

doi: https://doi.org/10.1038/d41586-023-02325-x

References

  1. Finkel, E. J. et al. Science 370, 533–536 (2020).

    Article  PubMed  Google Scholar 

  2. Bruns, A. Are Filter Bubbles Real? (Wiley, 2019).

    Google Scholar 

  3. Nyhan, B. et al. Nature 620, 137–144 (2023).

    Article  Google Scholar 

  4. Guess, A. M. et al. Science 381, 404–408 (2023).

    Article  Google Scholar 

  5. Guess, A. M. et al. Science 381, 398–404 (2023).

    Article  Google Scholar 

  6. González-Bailón, S. et al. Science 381, 392–398 (2023).

    Article  Google Scholar 

  7. Bail, C. A. et al. Proc. Natl Acad. Sci. USA 115, 9216–9221 (2018).

    Article  PubMed  Google Scholar 

  8. Bak-Coleman, J. B. et al. Proc. Natl Acad. Sci. USA 118, e2025764118 (2021).

    Article  PubMed  Google Scholar 

  9. Bakshy, E., Messing, S. & Adamic, L. A. Science 348, 1130–1132 (2015).

    Article  PubMed  Google Scholar 

  10. Robertson, R. E. et al. Nature 618, 342–348 (2023).

    Article  PubMed  Google Scholar 

  11. Metzler, H. & Garcia, D. Preprint at PsyArXiv https://doi.org/10.31234/osf.io/cxa9u (2022).

  12. Bail, C. Breaking the Social Media Prism: How to Make Our Platforms Less Polarizing (Princeton Univ. Press, 2022).

    Google Scholar 

  13. Lewandowsky, S. et al. Technology and Democracy: Understanding the Influence of Online Technologies on Political Behaviour and Decision-making (EU, 2020).

    Google Scholar 

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Competing Interests

The author declares no competing interests.

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