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Thomas Renault

@thomasrenault.bsky.social
88 followers 66 following 18 posts

Associate Professor in Economics. University Paris-Saclay. #SocialMedia #AI #Misinformation www.thomas-renault.com

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Reposted by Thomas Renault
Mohsen Mosleh @mmosleh.bsky.social · 31/08/2026
New preprint: Community Notes are good at correcting posts. But do they change the people behind them? We tracked 19,854 corrected accounts on X — 11.9M posts, 4 weeks before/after each correction. The answer: it depends who you are. @oii.ox.ac.uk 📎 arxiv.org/abs/2608.27526
arxiv.org
Community corrections have divergent downstream effects across corrected accounts
Community-based fact-checking can reduce the spread of annotated misleading posts, but whether it produces lasting behavioral change among corrected authors remains unclear. Here, we conduct a large-s...
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Thomas Renault @thomasrenault.bsky.social · 14/08/2026
🚨Our new paper on generative AI and researcher productivity is now out in @pnas.org A 🧵 www.pnas.org/doi/10.1073/...
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David Rand @dgrand.bsky.social · 01/08/2026
🚨JOIN the Civic Discourse Mediator Competition🚨 In 1st week of August, create & test a prompt-based AI mediator that helps people have more thoughtful, productive conversations about important public issues. Win $400! Get started here: forms.gle/HkbhEk4hELQE...
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Thomas Renault @thomasrenault.bsky.social · 19/05/2026
🚨 A few months ago, a paper published in Science reported that “LLM adoption is associated with a large increase in researchers’ scientific output.” In a comment released today, we show that the reported effects are driven by a methodological issue in the empirical design. arxiv.org/abs/2605.17979
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Alexios Mantzarlis @mantzarlis.com · 12/05/2026
Hello -- I'm looking for active X Community Notes contributors who want to talk to me for a piece on @indicator.media. Happy to use their pseudonym in the story. Please share with your networks!
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Matthew Facciani @matthewfacciani.bsky.social · 08/05/2026
New study finds that Community Notes on Twitter/X reduced reposting of misleading posts by about 61% after the note became visible, meaning users were much less likely to reshare content once they saw a fact-check. www.nature.com/articles/s41...
nature.com
Community-based fact-checking reduces the spread of misleading posts on X (formerly Twitter) - Nature Communications
Community-based fact-checking is increasingly adopted by social media platforms, but its real-world impact remains unclear. Here, the authors show that community notes can reduce the spread of mislead...
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Jay Van Bavel, PhD @jayvanbavel.bsky.social · 14/05/2026
Community-based fact-checking works Community notes reducethe subsequent spread of misleading posts by 61% and increase the odds that users delete their false posts by 94% But they appear too late to stop the viral stage of the diffusion making the effect modest. www.nature.com/articles/s41...
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CEPII @cepii-paris.bsky.social · 23/04/2026
🆕La Lettre du CEPII "L’émergence de l’extrême droite façonne-t-elle le positionnement des partis traditionnels sur la question migratoire?" d'Anthony Edo, @thomasrenault.bsky.social et Jérôme Valette. www.cepii.fr/CEPII/fr/pub... #extremedroite #migration #immigration #econsky #elections
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Alexios Mantzarlis @mantzarlis.com · 11/03/2026
NEW on @indicator.media: We launched a tracker to monitor who gets the most "@grok-is-this-true" replies on a given day on X. indicator.media/p/who-gets-g...
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David Rand @dgrand.bsky.social · 04/02/2026
Grok fact-checks our paper on Grok fact-checking - and it approves!
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David Rand @dgrand.bsky.social · 03/02/2026
🚨New WP "@Grok is this true?" We analyze 1.6M factcheck requests on X (grok & Perplexity) 📌Usage is polarized, Grok users more likely to be Reps 📌BUT Rep posts rated as false more often—even by Grok 📌Bot agreement with factchecks is OK but not great; APIs match fact-checkers osf.io/preprints/ps...
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Alexios Mantzarlis @mantzarlis.com · 28/01/2026
In a new working paper, @thomasrenault.bsky.social, @mmosleh.bsky.social & @dgrand.bsky.social break down how Grok is being used to fact-check, and on whom. osf.io/preprints/ps...
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Alexios Mantzarlis @mantzarlis.com · 28/01/2026
New on @indicator.media: "@grok is this true" was the single most frequent reply tagging X's AI chatbot in the six months following its launch.
indicator.media
@Grok is this true: How X’s chatbot performs as a fact-checking tool
New research explores whether the chatbot might replace the crowdsourced fact-checking program – and what that might mean for getting to the truth on X
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Martin Anota @manota.bsky.social · 21/12/2025
Comment l’irruption du FN a bouleversé le jeu politique (A la marge) blogs.alternatives-economiques.fr/anota/2025/1...
blogs.alternatives-economiques.fr
Comment l’irruption du FN a bouleversé le jeu politique
L’extrême-droite a eu une place extrêmement marginale dans le paysage politique des décennies qui ont immédiatement suivi la Seconde Guerre mondiale. Celui-ci était dominé par deux blocs, un bloc de g...
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andyguess @andyguess.com · 09/12/2025
The Center for Information Technology Policy at Princeton invites applications for a Postdoctoral Fellow to work with an interdisciplinary team (me, @bstewart.bsky.social, and @manoelhortaribeiro.bsky.social). Link: puwebp.princeton.edu/AcadHire/app... Please apply by THIS SUNDAY, Dec. 14!
We are seeking a Fellow to lead cutting-edge research on short-form video content and its societal implications.

Bridging the gap between computer vision, causal inference, and computational social science, the Fellow will focus on the large-scale analysis of TikTok data (using an existing, massive dataset).

The position involves developing novel multimodal methods to understand how short-form algorithmic content shapes public opinion, political polarization, and online culture.

This is a unique opportunity to work at the forefront of the field, combining rigorous social science research designs with state-of-the-art computational techniques.
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Reposted by Thomas Renault
David Rand @dgrand.bsky.social · 15/08/2025
Apply for funding to work with me and Gord at Cornell!
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Alexios Mantzarlis @mantzarlis.com · 17/06/2025
3 months into Meta’s pivot to Community Notes, the company has yet to share any data about its crowdsourced moderation feature. With help from three @indicator.media readers in the pilot, I tried to piece together how it’s going: indicator.media/p/a-first-lo...
indicator.media
A first look at Meta’s Community Notes
Zuckerberg's pivot to crowdsourcing features three jacked dudes, a flirty farmer, and some useful notes
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David Rand @dgrand.bsky.social · 17/06/2025
🚨In PNAS🚨 The right often accuses fact-checkers of political bias But we analyzed Community Notes on Musk's X and found posts flagged as "misleading" are 2.3x more likely to be written by Reps than Dems! The issue is Reps sharing misinformation, not fact-checker bias... www.pnas.org/doi/10.1073/...
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Thomas Renault @thomasrenault.bsky.social · 17/06/2025
🚨 New in PNAS 🚨 Posts by Republicans are 2.3 times more likely to be flagged as misleading than those by Democrats on X's Community Notes. A 🧵 pnas.org/doi/epub/10.... (Open Access)
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Laura Bronner @laurabronner.bsky.social · 07/02/2025
Interested in how people talk to each other online? Care about causal inference and/or NLP? Want to design and implement field experiments? Come do a PhD with Dominik Hangartner, me, and a bunch of awesome people at IPL in Zurich: jobs.ethz.ch/job/view/JOP...
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Reposted by Thomas Renault
David Rand @dgrand.bsky.social · 31/01/2025
Many thanks to lead author @thomasrenault.bsky.social who does amazing work on Community Notes and other topics; and the always-wonderful coauthor @mmosleh.bsky.social For more of my group's work on misinformation, check out this doc: docs.google.com/document/d/1...
docs.google.com
Misinformation-related papers
Papers related to misinformation from David Rand and Gordon Pennycook’s research team Key papers The Psychology of Fake News TiCS 2021 [Tweet thread] [15 minute video summary] Durably reducing conspi...
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David Rand @dgrand.bsky.social · 31/01/2025
We examine all English notes 1/23-6/24. More notes are proposed on tweets written by Reps than Dems. The partisan diff is MUCH bigger when restricting to "helpful" (ie ~unbiased) notes: 63% on Reps, 37% on Dems. The "vox populi" on X has spoken and concluded that Reps share more misinfo than Dems!
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David Rand @dgrand.bsky.social · 31/01/2025
Accusations of bias against conservatives drove Musk to buy Twitter- then gut fact-checking and up Community Notes. This month, Zuckerberg did the same at Meta. But greater sanctioning of conservatives could just be the result of conservatives sharing more misinformation bsky.app/profile/dgra...
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David Rand @dgrand.bsky.social · 31/01/2025
🚨New WP🚨 Remember Musk+Zuck+Trump+Jordan etc crying fact-checker bias b/c Reps were flagged more than Dems? We analyzed Community Notes on Musk's X and guess what: posts flagged as "misleading" are 67% more likely to be written by Reps! The issue is Reps, not fact-checkers... osf.io/preprints/ps...
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David Rand @dgrand.bsky.social · 28/01/2025
🚨OpEd+data: Meta is out of step with public opinion🚨 Zuck cut moderation b/c he said people no longer want it. But he's wrong! We polled 1k Americans and most people, including majority of Reps: i) want content moderation ii) don't want Community Notes w/o fact-checkers thehill.com/opinion/tech...
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