Funder: Research Council of Norway through its Centres of Excellence Scheme, FAIR project No 262675
Funder: J. William Fulbright Program
Funder: Institute for Lifecourse Development, University of Greenwich
Funder: Economic Social Research Council Impact Acceleration Award, University of Oxford
Funder: Institute of Social Sciences Ivo Pilar
Funder: Academy of Finland (Suomen Akatemia); doi: https://doi.org/10.13039/501100002341
Funder: Universit��t Wien (University of Vienna); doi: https://doi.org/10.13039/501100003065
Funder: Ministry of Science and Technology, Taiwan (Ministry of Science and Technology of Taiwan); doi: https://doi.org/10.13039/501100004663
Funder: NOMIS Stiftung (NOMIS Foundation); doi: https://doi.org/10.13039/501100008483
Funder: Princeton Graduate Student Research Funding (Program in Cognitive Science)
Funder: Corruption Laboratory on Ethics, Accountability, and the Rule of Law (CLEAR), University of Virginia
Funder: Project Pro.Co.P.E., IMT School (PAI2019)
Funder: Italian Ministry of University and Research - PRIN 2017 (20178293XT)
Funder: Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada (Conseil de Recherches en Sciences Naturelles et en G��nie du Canada); doi: https://doi.org/10.13039/501100000038
Funder: Australian Research Council (DP180102384)
Funder: Ernst and Young (EY); doi: https://doi.org/10.13039/501100003064
Changing collective behaviour and supporting non-pharmaceutical interventions is an important component in mitigating virus transmission during a pandemic. In a large international collaboration (Study 1, N = 49,968 across 67 countries), we investigated self-reported factors associated with public health behaviours (e.g., spatial distancing and stricter hygiene) and endorsed public policy interventions (e.g., closing bars and restaurants) during the early stage of the COVID-19 pandemic (April-May 2020). Respondents who reported identifying more strongly with their nation consistently reported greater engagement in public health behaviours and support for public health policies. Results were similar for representative and non-representative national samples. Study 2 (N = 42 countries) conceptually replicated the central finding using aggregate indices of national identity (obtained using the World Values Survey) and a measure of actual behaviour change during the pandemic (obtained from Google mobility reports). Higher levels of national identification prior to the pandemic predicted lower mobility during the early stage of the pandemic (r = -0.40). We discuss the potential implications of links between national identity, leadership, and public health for managing COVID-19 and future pandemics.