Research

Search the list below, or filter it by theme using the categories in the margin.

My work is also on Google Scholar and ORCID.

Peer-reviewed articles

The politicization of attitudes towards misinformation: How ideology shapes epistemic beliefs, normative judgments, and policy support
Journal of Elections, Public Opinion and Parties· 2026
Read more Replication materials
Mathieu Lavigne Misinformation, Public opinion, Polarization
(Mis)information, Polarization, and Trust in Elections: Longitudinal Evidence from Canada
with Holly Ann Garnett and Aengus Bridgman
Public Opinion Quarterly· 2026
Read more Replication materials
Mathieu Lavigne, Holly Ann Garnett, and Aengus Bridgman Misinformation, Election integrity, Trust in institutions, Polarization
L'inconfort ou l'indifférence ? Comprendre l'opposition aux mesures visant à contrer la mésinformation au Québec
Canadian Journal of Political Science / Revue canadienne de science politique· 2024
Read more Replication materials
Mathieu Lavigne Misinformation, Quebec & Canadian politics, Public opinion
Hide and seek: The connection between false beliefs and perceptions of government transparency
with Éric Bélanger, Richard Nadeau, Jean-François Daoust, and Erick Lachapelle
Harvard Kennedy School (HKS) Misinformation Review· 2022
Read more Replication materials
Mathieu Lavigne, Éric Bélanger, Richard Nadeau, Jean-François Daoust, and Erick Lachapelle Misinformation, Trust in institutions
Strengthening ties: The influence of microtargeting on partisan attitudes and the vote
Party Politics· 2021
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Mathieu Lavigne Microtargeting & political advertising
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Book chapters and encyclopedia entries

Microtargeting in Canadian Campaign Advertising
In Alex Marland, Elizabeth Dubois, and Thierry Giasson (eds.), Marketing the Vote: Election Strategy and Campaigning in Canada. UBC Press· 2026
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Mathieu Lavigne Microtargeting & political advertising, Quebec & Canadian politics
Misinformation
with Olivier Bergeron-Boutin
In Daniel Stockemer, Stephen Sawyer, and Audrey Gagnon (eds.), IPSA Companion to Political Science. Springer Nature· 2025
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Mathieu Lavigne and Olivier Bergeron-Boutin Misinformation
Polarisation affective : comprendre nos différences pour apaiser nos différends
In L'état du Québec 2025. Sommes-nous une société émotive ?, edited by Josselyn Guillarmou and Sandra Larochelle. Montréal: INM – Somme toute / Le Devoir, pp. 42–52· 2024
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Mathieu Lavigne Polarization, Quebec & Canadian politics
Microtargeting
In Andrea Ceron (ed.), Elgar Encyclopedia of Technology and Politics· 2022
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Mathieu Lavigne Microtargeting & political advertising
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Research reports

The Information Environment on the Eve of the 2026 Quebec Election
with Mika Desblancs-Patel, Jérémie Drouin, and Manon Paquet
Media Ecosystem Observatory· 2026
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Mathieu Lavigne, Mika Desblancs-Patel, Jérémie Drouin, and Manon Paquet Trust in institutions, Quebec & Canadian politics, AI & platforms, News & information environment, Election integrity
The News Canadians Actually See: Redefining Political Information in the Digital Age
with Saewon Park, Esli Chan, Sara Parker, Chris Ross, Junyan Zhu, Zeynep Pehlivan, and Aengus Bridgman
Media Ecosystem Observatory· 2026
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Mathieu Lavigne, Saewon Park, Esli Chan, Sara Parker, Chris Ross, Junyan Zhu, Zeynep Pehlivan, and Aengus Bridgman News & information environment, Quebec & Canadian politics
Facebook's News Slop Economy: Inside a foreign-run AI content-farm network monetizing fake news across Canada, the US, the UK, and Europe
with Mika Desblancs-Patel, David Hobson, Esli Chan, Manon Paquet, and Aengus Bridgman
Canadian Digital Media Research Network· 2026
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Mathieu Lavigne, Mika Desblancs-Patel, David Hobson, Esli Chan, Manon Paquet, and Aengus Bridgman AI & platforms, News & information environment, Misinformation
Survey on Canadians' Preference for Social Media Age Verification Policies
with Esli Chan, Brad Wood-MacLean, and Taylor Owen
Centre for Media, Technology and Democracy· 2026
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Esli Chan, Brad Wood-MacLean, Taylor Owen, and Mathieu Lavigne AI & platforms, Public opinion
Conspiratorial Claims and Institutional Distrust in Canada's Online Ecosystem
with Mika Desblancs-Patel, Esli Chan, Chris Ross, David Hobson, Ben Steel, and Helen A. Hayes
Media Ecosystem Observatory· 2026
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Mika Desblancs-Patel, Esli Chan, Mathieu Lavigne, Chris Ross, David Hobson, Ben Steel, and Helen A. Hayes Misinformation, Trust in institutions
Canadians' Perspectives on Governing AI Chatbots: A Policy Brief
with Helen A. Hayes, Esli Chan, and Chris Ross
Centre for Media, Technology and Democracy· 2026
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Mathieu Lavigne, Helen A. Hayes, Esli Chan, and Chris Ross AI & platforms, Public opinion
Incident Debrief: Ripple Effects of the Charlie Kirk Assassination in the Canadian Information Ecosystem
with Aengus Bridgman, Eric Merkley, and 9 others
Canadian Digital Media Research Network· 2026
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Aengus Bridgman, Eric Merkley, Mathieu Lavigne, and 9 others Misinformation, News & information environment
The Canadian Information Ecosystem during the 2025 Federal Election
with Aengus Bridgman, Jennie Phillips, Alexei Abrahams, and 32 others
Media Ecosystem Observatory / Canadian Digital Media Research Network· 2025
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Aengus Bridgman, Jennie Phillips, Alexei Abrahams, and 32 others (including Mathieu Lavigne) Election integrity, Misinformation, News & information environment
The Sources and Response to Scams Using AI and Fake News Websites
with Alexei Abrahams, Tess Corkery, David Hobson, and Aengus Bridgman
Canadian Digital Media Research Network· 2025
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Mathieu Lavigne, Alexei Abrahams, Tess Corkery, David Hobson, and Aengus Bridgman AI & platforms, Misinformation
Social Media Platforms Host and Profit from Scams Using AI and Fake News Websites
with Alexei Abrahams, Mahnan Omar, and Aengus Bridgman
Canadian Digital Media Research Network· 2025
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Mathieu Lavigne, Alexei Abrahams, Mahnan Omar, and Aengus Bridgman AI & platforms, Misinformation
Analyse du rôle de la mésinformation lors de l'élection provinciale québécoise de 2022
with Maxime Blanchard, Anne Imouza, Aengus Bridgman, Chloé Staller, Kaligirwa Namahoro, Ella Noel, Catherine Perron, Phaedra de Saint-Rome, and Taylor Owen
Media Ecosystem Observatory· 2023
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Mathieu Lavigne, Maxime Blanchard, Anne Imouza, Aengus Bridgman, Chloé Staller, Kaligirwa Namahoro, Ella Noel, Catherine Perron, Phaedra de Saint-Rome, and Taylor Owen Misinformation, Election integrity, Quebec & Canadian politics
The Role of Misinformation in the 2022 Quebec Election: Mid-Election Analysis
with Anne Imouza, Maxime Blanchard, Catherine Perron, Chloé Staller, Ella Noel, and Kaligirwa Namahoro
Media Ecosystem Observatory· 2022
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Mathieu Lavigne, Anne Imouza, Maxime Blanchard, Catherine Perron, Chloé Staller, Ella Noel, and Kaligirwa Namahoro Misinformation, Election integrity, Quebec & Canadian politics
Mis- and Disinformation during the 2021 Canadian Federal Election
with Aengus Bridgman, Melissa Baker, and 15 others
Media Ecosystem Observatory· 2022
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Aengus Bridgman, Mathieu Lavigne, Melissa Baker, and 15 others Misinformation, Election integrity
Disinformation Risk Assessment: The Online News Market in Canada
Global Disinformation Index· 2021
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Global Disinformation Index News & information environment, Misinformation
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Working papers

Campagnes électorales québécoises à l'ère de la désinformation : perceptions partisanes et confiance démocratique
with Marie-Eve Carignan and Simon Thibault
2027
Mathieu Lavigne, Marie-Eve Carignan, and Simon Thibault Misinformation, Trust in institutions, Quebec & Canadian politics
Le Parti conservateur du Québec : entre polarisation politique et réalignement partisan
with Éric Bélanger
2027
Mathieu Lavigne and Éric Bélanger Polarization, Quebec & Canadian politics
The News Canadians Actually See: Redefining Political Information in the Digital Age
with Aengus Bridgman
2026
Mathieu Lavigne and Aengus Bridgman News & information environment, Quebec & Canadian politics
Outlet- and Topic-Level Selective Avoidance Limit the Reach of Content Challenging Election Fraud Misinformation
with Brian Fogarty, John Carey, Brendan Nyhan, and Jason Reifler
2026
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Mathieu Lavigne, Brian Fogarty, John Carey, Brendan Nyhan, and Jason Reifler Misinformation, Election integrity, News & information environment
The Origin, Prevalence, and Consequences of Issue-Based Affective Polarization: Examining COVID-19 and Climate Change Affects
with Éric Bélanger
2025
Mathieu Lavigne and Éric Bélanger Polarization, Public opinion
Une barrière linguistique? How Language Influences the Spread of U.S.-Based COVID-19 Misinformation
with Aengus Bridgman
2025
Mathieu Lavigne and Aengus Bridgman Misinformation, Quebec & Canadian politics
Reach, Perceived Accuracy, and Engagement With Real and Fake Stories During the 2021 Canadian Federal Election
with Aengus Bridgman
2024
Aengus Bridgman and Mathieu Lavigne Misinformation, Election integrity
Fake, Frequent, Harmful: Unpacking and Explaining the Citizen View of Misinformation
2024
Mathieu Lavigne Misinformation, Public opinion
No matching items