David Lazer on Muck Rack

David Lazer

Massachusetts, United States
As seen in: AIChE Journal, Color Research & Application, Nature, The Washington Post, Cambridge University Press & Assessment, Los Angeles Times, Memory Studies, WIRED Magazine, PNAS, POLITICO and
🇺🇦 Computational social scientist, Northeastern & Harvard LazerLab.net COVIDstates.org VolunteerScience.com, NationalInternetObservatory.com
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Articles

How deceptive online networks reached millions in the US 2020 elections

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By Ruth E. Appel, young kim, Jennifer Pan, Yiqing Xu, Ben Nimmo, Daniel Thomas, Hunt Allcott, Pablo Barberá, Taylor Kate Brown, Adriana Crespo-Tenorio, Drew Dimmery, Deen Freelon, Matthew Gentzkow, Sandra González-Bailón, Andrew Guess, Shanto Iyengar, David Lazer, Neil Malhotra, Devra Moehler, Brendan Nyhan, Jaime E. Settle, Emily Thorson, Rebekah Tromble, Carlos Rivera, Magdalena E. Wojcieszak, Chad Kiewiet de Jonge, Annie Franco, Winter Mason, Natalie Jomini Stroud, Joshua Tucker, Beixian Xiong
| Nature Verified
Abstract Deceptive online networks are coordinated efforts that use identity deception to pursue strategic political or financial goals. During the US 2020 elections, these networks reached at least 37 million Facebook and 3 million Instagram users, representing 15% and 2% of the platforms’ active US adult users, respectively. Only 3 networks out of 49—1 network with explicitly political aims and 2 that appeared to use politics as a lure for profit—were responsible for over 70% of users reached.
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The effects of political advertising on Facebook and Instagram before the 2020 US election - Nature Human Behaviour

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By Hunt Allcott, Matthew Gentzkow, Ro’ee Levy, Adriana Crespo-Tenorio, Natasha Dumas, Winter Mason, Devra Moehler, Pablo Barberá, Taylor Brown, Juan Cisneros Verified, Drew Dimmery, Deen Freelon, Sandra González-BailĂłn, Andrew Guess, young kim, David Lazer, Neil Malhotra, Sameer Nair-Desai, Brendan Nyhan, Jennifer Pan, Jaime E. Settle, Emily Thorson, Rebekah Tromble, Carlos Rivera, Benjamin Wittenbrink, Magdalena E. Wojcieszak, Shiqi Yang, Annie Franco, Natalie Jomini Stroud, Joshua Tucker, Saam Zahedian, Chad Kiewiet de Jonge
| Nature Verified
Abstract We study the effects of social media political advertising by randomizing subsets of 36,906 Facebook users and 25,925 Instagram users to have political ads removed from their news feeds for 6 weeks before the 2020 US presidential election. We show that most presidential ads were targeted towards parties’ own supporters and that fundraising ads were the most common.
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Using co-sharing to identify use of mainstream news for promoting potentially misleading narratives - Nature Human Behaviour

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By Pranav Goel, David Lazer
| Nature Verified
Abstract Much of the research quantifying volume and spread of online misinformation measures the construct at the source level, identifying a set of specific unreliable domains that account for a relatively small share of news consumption. This source-level dichotomy obscures the potential for users to repurpose factually true information from reliable sources to advance misleading narratives.
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