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Arcom's fourth study day: presentation of researchers' work on audiovisual and digital media
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Find all the presentations of the work of researchers invited by Arcom, in partnership with ENS Paris-Saclay, for the fourth edition of the Arcom study day on Thursday, November 13, 2025.
In May 2025, the French regulatory authority for audiovisual and digital communication, Arcom, published a summons to thescientific community to select the work of researchers dealing with subjects related to its missions.
Information and freedom of expression, public protection and social cohesion, creation and the fight against piracy, digital transformation and economic sustainability... Some twenty academics from leading European research centers presented their work and exchanged views with the public all day on Thursday November 13, 2025.
The papers were selected by Arcom's scientific committee. Their content does not reflect the opinion of Arcom or the members of its scientific committee.
Review the study day
Opening session
- Martin Ajdari, President of Arcom "Speech by Martin Ajdari, President of Arcom, at the opening of the 4th Arcom Study Day".
- Nathalie Carrasco president of the École Normale Supérieure Paris-Saclay
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Presentation of the researchers' work
From media to platforms: information and democratic participation
Moderated by Fabien Tarissan, CNRS researcher and professor at ENS Paris-Saclay.
Formatting political news on digital platforms. The case of political YouTube
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Screening the revolt. The (tele)visual factory of the riots of 2005 and 2023
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The price of visibility: a computational analysis of online interactions with parliamentarians
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Access to information, media consumption and democratic participation: a national experiment in French high schools
Julia Cagé
Sciences Po Paris
Simon Briole
University of Montpellier
Andréa Prat
University of Colombia
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Keynote - Disinformation and democracy: the French and American cases
Thomas Hochmann
Professor at Paris-Nanterre University, member of the Institut Universitaire de France
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Arcom study
94%
The French and information
The French have a close relationship with information: 94% say they are interested in information , and the same proportion keep themselves informed on a daily basis.
Arcom has published a study on the relationship between the French and information, based on a representative sample of 3,400 French people aged 15 and over.
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Truth in crisis: verification policies and technologies
Moderated by Olivier Bos, Professor of Economics at ENS Paris-Saclay.
Integrity of information: exploring the causes of "minority beliefs" and the factors that help to steer away from erroneous or misleading discourse
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The effect of populist news on voting intentions and political attitudes
Nicolas Jacquemet
Université Paris 1 Panthéon-Sorbonne and Paris School of Economics (PSE)
Laurence Vardaxoglou
University of Paris 1
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The fundamental limits of crowdsourcing moderation to address systemic risks in electoral processes
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@Grok is it true? Fact-checking social networks with LLMs
Thomas Renault
University of Paris-Saclay
Mohsen Mosleh
University of Paris-Saclay
David Rand
University of Paris-Saclay
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Representation and visibility: challenges to plurality in the media
Moderated by Laure Fallou, project manager at Arcom's Department of Studies, Economics and Forecasting.
Entertainment or ideological orientation? Media demand and the effects of channel shutdowns in France
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Diversity" as a mission for France Télévisions: representation and perception of diversity, from programmes to audiences
Sarah Lécossais
Sorbonne Paris Nord University
Anna Tible
Paris 8 University
Maxime Cervulle
Paris 8 University
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Questioning the notion of "discoverability" of cultural content: public policy challenges and audience practices
Christine Chevret-Castellani
Université Sorbonne Nouvelle/Irméccen
Alix Bénistant
Sorbonne Paris Nord University/LabSIC
Sarah Labelle
Sorbonne Paris Nord University/LabSIC
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Multi-scale analysis of information diffusion in social networks
Gaspard Abel
Borelli Center (ENS Paris-Saclay)
Kalogeratos Argyris
Borelli Center (ENS Paris-Saclay)
Jean-Pierre Nadal
Center Borelli (ENS Paris-Saclay)
Julien Randon-Furling
Center Borelli (ENS Paris-Saclay)
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Keynote - Blocking infrastructures: between the Internet's "lower layers" and content control
Francesca Musiani
Director of the CNRS Centre Internet et Société, associate researcher at the Centre de sociologie de l'innovation (i3/MINES ParisTech)
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Norms for online moderation
Moderated by Michel Glazman, project manager at Arcom's Department of Studies, Economics and Forecasting.
Plates under influence: food norms, digital platforms and critical education in the age of TikTok
Clémentine Hugol-Gential
Université Bourgogne Europe CIMEOS Laboratory
Léa Lopes
Burgundy University Europe CIMEOS Laboratory
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The making of moderation norms in the digital public space: the normative effects of the work of content moderators
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In search of neutrality: Wikipedians and the challenge of moderating political promotion
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Contextualizing online conversations: language models for detecting abuse and intervention
Célia Nouri
Médialab (Sciences Po), ALMAnaCH (Inria)
Chloé Clavel
Inria (ALMAnaCH)
Jean-Pierre Cointet
Sciences Po, médialab
Manon Berriche
Sciences Po, médialab
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Arcom studies
53%
Protecting persons under 18 online: what are the risks? What protection is there?
53% of youngsters want more protection and support.
In order to understand the uses and practices of youngsters on digital platforms, the nature and extent of the risks to which they are exposed, and the ways in which they deal with them, Arcom has conducted a ground-breaking study on the subject.
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3h26
Audience for online platforms
French people aged 12 and over spend an average of 3 hours 26 minutes a day on the Internet.
Arcom has set up an Observatoire des plateformes en ligne (Online Platforms Observatory) to gain a better understanding of the audience for very large platforms and search engines, and of platforms potentially subject to the Digital Services Regulation (DSR).
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Closing remarks
On the same subject
Third Arcom Study Day: presentation of researchers' work on audiovisual and digital media
13 November 2024
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Second Arcom Study Day: presentations of researchers' work on audiovisual and digital media
13 November 2023
Find all the presentations of the work of the researchers invited by Arcom for the second edition of the Authority's study day.
First Arcom study day: presentations of researchers' work on audiovisual and digital media
17 November 2022
Arcom's first study day enabled researchers in the humanities and social sciences to present and discuss their work on audiovisual and digital media with an audience of experts. Find out more about the researchers' presentations at the Authority's headquarters.