Research

You can also find my research on my Google Scholar profile.

Peer-reviewed articles

Lavigne, Mathieu. 2024. 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.

Lavigne, Mathieu, Éric Bélanger, Richard Nadeau, Jean-François Daoust, and Erick Lachapelle. 2022. Hide and seek: The connection between false beliefs and perceptions of government transparency. Harvard Kennedy School (HKS) Misinformation Review. Replication files

Lavigne, Mathieu. 2021. Strengthening ties: The influence of microtargeting on partisan attitudes and the vote. Party Politics

Book chapters/Encyclopedia entries

Lavigne, Mathieu. Forthcoming, 2026. Microtargeting in Canadian Campaign Advertising. In Alex Marland, Elizabeth Dubois, and Thierry Giasson (ed.). Political Marketing in a Canadian Election. UBC Press.

Lavigne, Mathieu and Olivier Bergeron-Boutin. Forthcoming, 2026. Misinformation. In Daniel Stockemer, Stephen Sawyer, and Audrey Gagnon (ed.). IPSA Companion to Political Science. Springer Nature.

Lavigne, Mathieu. 2024. [Polarisation affective: Comprendre nos différences pour apaiser nos différends]. Dans L’état du Québec 2025. Sommes-nous une société émotive ?. Sous la direction de Josselyn Guillarmou et Sandra Larochelle. Montréal : INM - Somme toute / Le Devoir, pp. 42-52.

Lavigne, Mathieu. 2022. Microtargeting. In Andrea Ceron (Ed.). Elgar Encyclopedia of Technology and Politics.

Research reports

The Canadian Information Ecosystem during the 2025 Federal Election. Media Ecosystem Observatory. 2025.

Analyse du rôle de la mésinformation lors de l’élection provinciale québécoise de 2022. Centre for Media, Technology, and Democracy. 2023.

Mis- and disinformation during the 2021 Canadian federal election. Media Ecosystem Observatory. 2022.

Disinformation Risk Assessment: The Online News Market in Canada. Global Disinformation Index. 2021. (Aussi disponible en français)

Working papers

[1] Lavigne, Mathieu, Holly Ann Garnett, and Aengus Bridgman. (Mis)information, Polarization, and Trust in Elections: Longitudinal Evidence from Canada. Conditionally accepted. Public Opinion Quarterly.

[2] Lavigne, Mathieu. Fake, Frequent, Harmful: Unpacking and Explaining the Citizen View of Misinformation. R&R (minor revisions).

[3] Lavigne, Mathieu, Brian Fogarty, John Carey, Brendan Nyhan, and Jason Reifler. Differential Inattention Limits Public Exposure to Content Challenging Election Fraud Misinformation.

[4] Lavigne, Mathieu and Éric Bélanger. The Origin, Prevalence, and Consequences of Issue-Based Affective Polarization: Examining COVID-19 and Climate Change Affects.

[5] Lavigne, Mathieu and Aengus Bridgman. Une barrière linguistique? How Language Influences the Spread of U.S.-Based COVID-19 Misinformation.

[6] Bridgman, Aengus and Mathieu Lavigne. Reach, Perceived Accuracy, and Engagement With Real and Fake Stories During the 2021 Canadian Federal Election.