I am a Professor of Economics at the University Paris-Saclay. My research lies at the intersection of economics, finance, and technology, with a particular focus on applying machine learning and textual analysis to study the impact of media and social media. I am also the creator of the blog Captain Economics and consultant in AI and LLM at the Banque de France.
Selected list of publications:
- Community-based fact-checking reduces the spread of misleading posts on social media
(2026), Nature Communications (Forthcoming)
- Republicans are flagged more often than Democrats for sharing misinformation on X's Community Notes
(2025), PNAS
- The Usual Suspects: Offender Origin, Media Reporting and Natives’ Attitudes Towards Immigration
(2024), The Economic Journal
Selected list of working papers:
- @Grok Is This True? LLM-Powered Fact-Checking on Social Media
(2025), with M. Mosleh and D. Rand
- Emotions and Policy Views
(2025), with E. Davoine, S. Stantcheva and Y. Algan
All publications - All Working Papers