Data infrastructure
Datasets I have built or contributed to.
Together with Malo Jan, I develop PartySOME, a dataset and website on political parties’ social media activity and the political issues they communicate about. You can explore the data at partysome.org, and download it from the repositories below.
2025
PartySOME II: A New Comparative Dataset on Parties' Issue Agendas
Monthly measures of issue attention for 219 parties in 18 European countries, derived from 4.6 million posts on Twitter, Facebook, and Instagram and classified into the policy topics of the Comparative Agendas Project.
Jan, M., & Sattelmayer, L. (2026). Issue Competition on Social Media: A New Comparative Dataset on Parties' Issue Agendas. West European Politics. https://doi.org/10.1080/01402382.2026.2734520
2025
PartySOME: A Comprehensive Dataset on Political Parties' SOcial MEdia Activity
The social media activity of 498 political parties across 37 countries on Facebook, Instagram, Twitter, and YouTube, from account creation to the end of 2023. Aggregated data on posting volume and timing make it possible to study long-term patterns in platform adoption, communication, and parties' online activity.
Jan, M., & Sattelmayer, L. (2025). PartySOME: A Comprehensive Dataset on Political Parties' SOcial MEdia Activity. Party Politics.
2025
Baromètre Écologie Environnement 2024
Panel survey on environmental attitudes and behaviors in France (ELIPSS panel).
Pautard, É., Sauger, N., Rouban, L., Ginsburger, M., Grossman, E., Jan, M., Sattelmayer, L., Tallent, T., Thabourey, L., & Audebert, S. (2025). Baromètre Écologie Environnement (ELIPSS 2024) [Data set]. data.sciencespo, V2. https://doi.org/10.21410/7E4/2NWBPE
2024
Baromètre Écologie Environnement 2023
Panel survey on environmental attitudes and behaviors in France (ELIPSS panel).
Pautard, É., Sauger, N., Rouban, L., Ginsburger, M., Grossman, E., Jan, M., Sattelmayer, L., Tallent, T., Thabourey, L., & Audebert, S. (2024). Baromètre Écologie Environnement (ELIPSS 2023) [Data set]. data.sciencespo, V2. https://doi.org/10.21410/7E4/OH0RKI