Comparative Constitutions Projetc (CCP)
Comparativa Constitutions Project (European University)
Freedom House
IDEA - Databases and Network
PARLINE - Database on National Parliaments
Polity IV
University of Gothemburg (The Quality of Government Institute)
The Wordwide Governance Indicators (WGI) Project
Transparency International, UK (Government Defence Anti-corruption Index)
The Macro Data Guide - Wordwide Indicators
V-Dem (Varietes of Democracy)
World Bank (Actionable Governance Indicators - AGI DATA PORTAL)
World DataBank (Worldwide Governance Indicators)
Word Governnace Index (WGI)
World Justice Project (Index Rule of Law)
