Quality of Government (QOG) Institute
The QOG Institute is hosted by members of the Department of Political Science at Göteborg University in Sweden and is devoted to "the causes, consequences and nature of 'good governance.'" The Institute has created three collections of data on governance: a broad collection of governance indicators that is global in coverage; a more narrow collection that focuses on social policy in wealthier countries; and data from expert surveys on politicization and professionalization of public administration in individual countries. The data are compiled from multiple sources, including the Polity IV Project, the Cingarelli-Richards Human Rights Data, Transparency International, Freedom House, various international organizations, and datasets produced by various academics. The QoG data are available in SPSS, Stata, and comma-delimited (.csv) formats.
World Bank Goverance Data
The World Bank hosts a website devoted to data on governance and institutional quality and their relevance for economic development and performance. Of particular interest may be the Worldwide Governance Indicators and the firm-level surveys such as the World Business Environment Surveys (WBES data are also available from the International Finance Corporation) and the Enterprise Surveys. In addition to the main data page, the Bank also has a web inventory of data pertaining to institutional quality.
The Latinobarómetro is an annual survey conducted amongst 18 countries in Latin America. The survey, which has been conducted since 1995, asks respondents about topics such as globalization, democratic governance and political institutions, "social capital," the environment, and gender issues. The Data Center has microdata files for this survey from 1995 onwards.
World Values Surveys Series
The World Values Survey is "a worldwide investigation of sociocultural and political change. It is conducted by a network of social scientist at leading universities all around world. The survey is performed on nationally representative samples in almost 80 societies on all six inhabited continents." It is an excellent source for cross-national survey data and is a widely-referenced resource. The Data Center has data from four "waves" of the World Values Survey available here.