Elections, Affective Polarization and Democratic Erosion in 10 Democracies (EPADE)

The EPADE project (Elections, Affective Polarization and Democratic Erosion in 10 Democracies) is a multi-country panel survey study examining the dynamic relationships between affective polarization, democratic erosion, political trust, and political communication in contemporary European democracies. The project collects individual-level panel data across three survey waves in several countries, including Germany, Portugal, the Netherlands, Chile, and Peru. This OSF repository contains the harmonized datasets, original survey questionnaires (by wave), and data protocols for each country. The data protocols document variable naming conventions, value labelling protocols, coding of missing and non-response values, and the full variable list with metadata. The repository is structured by country. Each country component: (a) Data Protocol (Full technical documentation of the dataset), (b) Questionnaires (Original survey instruments for Waves 1, 2, and 3 in English and countries' native language), and (c) Dataset (Harmonized panel dataset in Stata (.dta) format) Principal Investigator: Mariano Torcal Institutional affiliation: Universitat Pompeu Fabra