Government data

• European Journal of Political Research - Political Data Yearbook
• Party Government Data Set (Woldendorp, Keman & Budge 2011)
• Party Systems and Governments Observatory database

Elections

• IPU PARLINE database on national parliaments
• ParlGov database on parliaments and governments

Institutions

• Comparative Welfare States Data Set (Huber, Ragin, Stephens, Brady & Beckfield 2004)
• European Journal of Political Research - Political Data Yearbook
• Patterns of Democracy (Lijphart 2012)
• Die politischen Systeme Westeuropas (Ismayr 2003)
• Die politischen Systeme Osteuropas (Ismayr 2006)

Openness of the economy

• Chinn-Ito Index (measure of financial openness)
• Penn World Table

Macroeconomic data

• Eurostat
• AMECO (Annual macro-economic database by the European Commission)
• OECD Economic Outlook
• OECD Main Economic Indicators
• OECD Labour Force Statistics

Industrial disputes and trade unions

• ILOSTAT Database (International Labour Office, ILO)
• OECD/AIAS ICTWSS: Database on Institutional Characteristics of Trade Unions, Wage Setting, State Intervention and Social Pacts (OECD 2021)

Social expenditure data

• OECD Social Expenditure Statistics
• Eurostat

Income inequality

• LIS Luxembourg Income Study Database

Demographic data

• OECD Labour Force Statistics
• AMECO (Annual macro-economic database by the European Commission)