Asymmetric ideological segregation in exposure to political news on Facebook.

Humans Communication Ecosystem Politics Social Media

Journal

Science (New York, N.Y.)
ISSN: 1095-9203
Titre abrégé: Science
Pays: United States
ID NLM: 0404511

Informations de publication

Date de publication:
28 07 2023
Historique:
medline: 31 7 2023
pubmed: 27 7 2023
entrez: 27 7 2023
Statut: ppublish

Résumé

Does Facebook enable ideological segregation in political news consumption? We analyzed exposure to news during the US 2020 election using aggregated data for 208 million US Facebook users. We compared the inventory of all political news that users could have seen in their feeds with the information that they saw (after algorithmic curation) and the information with which they engaged. We show that (i) ideological segregation is high and increases as we shift from potential exposure to actual exposure to engagement; (ii) there is an asymmetry between conservative and liberal audiences, with a substantial corner of the news ecosystem consumed exclusively by conservatives; and (iii) most misinformation, as identified by Meta's Third-Party Fact-Checking Program, exists within this homogeneously conservative corner, which has no equivalent on the liberal side. Sources favored by conservative audiences were more prevalent on Facebook's news ecosystem than those favored by liberals.

Identifiants

DOI: 10.1126/science.ade7138 PMID: 37499003
pubmed: 37499003
doi: 10.1126/science.ade7138
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

392-398

Auteurs

Sandra González-Bailón (S)

Annenberg School for Communication, University of Pennsylvania, Philadelphia, PA, USA.
ORCID: 0000-0002-8372-798X

David Lazer (D)

Network Science Institute, Northeastern University, Boston, MA, USA.
ORCID: 0000-0002-7991-9110

Pablo Barberá (P)

Meta, Menlo Park, CA, USA.
ORCID: 0000-0002-9063-4829

Meiqing Zhang (M)

Meta, Menlo Park, CA, USA.
ORCID: 0000-0002-3722-1865

Hunt Allcott (H)

Stanford Doerr School of Sustainability, Stanford University, Stanford, CA, USA.

Taylor Brown (T)

Meta, Menlo Park, CA, USA.
ORCID: 0000-0002-5284-338X

Adriana Crespo-Tenorio (A)

Meta, Menlo Park, CA, USA.

Deen Freelon (D)

Annenberg School for Communication, University of Pennsylvania, Philadelphia, PA, USA.
ORCID: 0000-0001-5055-0316

Matthew Gentzkow (M)

Department of Economics, Stanford University, Stanford, CA, USA.
ORCID: 0000-0001-7758-8656

Andrew M Guess (AM)

Department of Politics and School of Public and International Affairs, Princeton University, Princeton, NJ, USA.
ORCID: 0000-0003-2974-7848

Shanto Iyengar (S)

Department of Political Science, Stanford University, Stanford, CA, USA.
ORCID: 0000-0003-2406-719X

Young Mie Kim (YM)

School of Journalism and Mass Communication, University of Wisconsin-Madison, Madison, WI, USA.
ORCID: 0000-0001-6068-9274

Neil Malhotra (N)

Graduate School of Business, Stanford University, Stanford, CA, USA.
ORCID: 0000-0003-4477-6049

Devra Moehler (D)

Meta, Menlo Park, CA, USA.
ORCID: 0000-0002-3631-8630

Brendan Nyhan (B)

Department of Government, Dartmouth College, Hanover, NH, USA.
ORCID: 0000-0001-7497-1799

Jennifer Pan (J)

Department of Communication, Stanford University, Stanford, CA, USA.
ORCID: 0000-0002-4818-0122

Carlos Velasco Rivera (CV)

Meta, Menlo Park, CA, USA.

Jaime Settle (J)

Department of Government, William & Mary, Williamsburg, VA, USA.
ORCID: 0000-0003-2190-9291

Emily Thorson (E)

Department of Political Science, Syracuse University, Syracuse, NY, USA.
ORCID: 0000-0002-6514-801X

Rebekah Tromble (R)

School of Media and Public Affairs and Institute for Data, Democracy, and Politics, The George Washington University, Washington, DC, USA.
ORCID: 0000-0003-3875-2729

Arjun Wilkins (A)

Meta, Menlo Park, CA, USA.

Magdalena Wojcieszak (M)

Department of Communication, University of California, Davis, Davis, CA, USA.
Amsterdam School of Communication Research, University of Amsterdam, Amsterdam, Netherlands.
ORCID: 0000-0001-5456-4483

Chad Kiewiet de Jonge (CK)

Meta, Menlo Park, CA, USA.

Annie Franco (A)

Meta, Menlo Park, CA, USA.

Winter Mason (W)

Meta, Menlo Park, CA, USA.
ORCID: 0000-0003-1269-8947

Natalie Jomini Stroud (NJ)

Moody College of Communication, University of Texas at Austin, Austin, TX, USA.
Center for Media Engagement, University of Texas at Austin, Austin, TX, USA.
ORCID: 0000-0003-3528-9986

Joshua A Tucker (JA)

Wilf Family Department of Politics, New York University, New York, NY, USA.
Center for Social Media and Politics, New York University, New York, NY, USA.
ORCID: 0000-0003-1321-8650

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Classifications MeSH

questionsmedicales.fr › Eucaryotes › Animaux › Chordés › Vertébrés › Mammifères › Eutheria › Primates › Haplorhini › Catarrhini › Hominidae › Humains › Asymmetric ideological segregation in exposure...
questionsmedicales.fr › Sciences de l'information › Communication › Asymmetric ideological segregation in exposure...
questionsmedicales.fr › Environnement et santé publique › Environnement › Écosystème › Asymmetric ideological segregation in exposure...
questionsmedicales.fr › Sciences sociales › Politique › Asymmetric ideological segregation in exposure...
questionsmedicales.fr › Sciences de l'information › Sources d'information › Moyens de communication › Médias sociaux › Asymmetric ideological segregation in exposure...