QoG Data at the Quality of Government Institute
Compiled from open-source data, this free, extensive, and well-documented data collection includes their flagship Standard Dataset, with around 2100 variables. These are grouped into the following categories: Bureaucratic Structure, Civil Society/Population/Culture, Conflict, Education, Energy and Infrastructure, Environment, Gender Equality, Health, History, Judicial, Labour Market, Media, Migration, Political Parties and Elections, Political System, Private Economy, Public Economy, Quality of Government, Religion, and Welfare.
The Standard Dataset comes in a cross-section version, with recent data, and a time-series dataset covering 1946 to 2023. Formats include Stata (.dta), CSV, Excel (.xlsx), and SPSS (.sav). The codebook for the Standard Dataset is nearly 1700 pages. The QoG Basic Dataset contains the most frequently used variables from the Standard Dataset, and QOG also has datasets relating to the OECD, the EU, and for environmental indicators.