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Data for nations and regions are collected from 17 reliable and widely-used resources and were assembled by the Association of Religion Data Archives (ARDA) under the supervision of Davis Brown, Dane Mataic, Christopher Bader, and Roger Finke, with the financial support of the John Templeton Foundation and the Penn State University.

Religion and State (RAS) Project: A university-based project located at Bar Ilan University in Ramat Gan, Israel. Its goal is to create a set of measures that systematically gauge the intersection between government and religion. Specifically, it examines government religion policy. Round 3 of the RAS dataset measures the extent of government involvement in religion (GIR) or the lack thereof for 183 states on a yearly basis between 1990 and 2014. This constitutes all countries with populations of 250,000 or more as well as a sampling of smaller states. This dataset, featuring this and other international measures highlighted on the country pages, may be previewed and downloaded here. Used with permission.

Religious Characteristics of States Dataset Project: Demographics: Reports the estimates of religious demographics, both country by country and region by region. The RCS was created to fulfill the unmet need for a dataset on the religious dimensions of countries of the world, with the state-year as the unit of observation. It estimates populations and percentages of adherents of 100 religious denominations including second level subdivision within Christianity and Islam. The RCS Data Project would like to acknowledge, recognize, and express our deepest gratitude for the significant contributions of Todd M. Johnson the principal investigator of the World Christian Database and the co-principal investigator of the World Religion Database. Used with permission.

Religious Characteristics of States Dataset Project: Government Religious Preference (GRP): Measures government-level favoritism toward, and disfavor against, 30 religious denominations. A series of ordered categorical variables index the state's institutional favoritism in 28 different ways. The variables are combined to form five composite indices for five broad components of state-religion: official status, religious education, financial support, regulatory burdens, and freedom of practice. The five components' composites in turn are further combined into a single composite score, the GRP score. The RCS Data Project would like to acknowledge, recognize, and express our deepest gratitude for the significant contributions of Todd M. Johnson the principal investigator of the World Christian Database and the co-principal investigator of the World Religion Database. Used with permission.

International Religious Freedom Report: Submitted to Congress annually by the Department of State in compliance with Section 102(b) of the International Religious Freedom Act (IRFA) of 1998. This report supplements the most recent Human Rights Reports by providing additional detailed information with respect to matters involving international religious freedom. It includes individual country chapters on the status of religious freedom worldwide. A dataset with these and the other international measures highlighted on the country pages can be downloaded from this website. These State Department reports are open source. Used with permission.

ARDA: The 2003, 2005, and 2008 International Religious Freedom reports were coded by researchers at the Association of Religion Data Archives. The data were used to construct indexes on government regulation of religion, government favoritism of religion, and social regulation of religion, as well as a measure for religious persecution. The coding of the data and the construction of the indexes are reviewed in an article by Brian Grim and Roger Finke.

Wikipedia: All country histories and flags were obtained from Wikipedia.org, 2015. Used with permission.

World Bank's Open Data site: Relying on agencies from each country, as well as a synthesis of data from United Nations divisions, Eurostate Demographic statistics, the U.S. Census international database, and its own data collection, the World Bank’s Open Data offers free and open access to data about development in countries around the globe. Used with permission.

Cingranelli-Richards (CIRI) Human Rights Dataset: This dataset contains standards-based quantitative information on government respect for 15 internationally recognized human rights for 202 countries, annually from 1981-2011. It is designed for use by scholars and students who seek to test theories about the causes and consequences of human rights violations, as well as policy makers and analysts who seek to estimate the human rights effects of a wide variety of institutional changes and public policies including democratization, economic aid, military aid, structural adjustment, and humanitarian intervention. The full CIRI Human Rights Dataset can be accessed through the above link. Used with permission.

The Center for Systemic Peace (CSP): The Center supports scientific research and quantitative analysis in many issue areas related to the fundamental problems of violence in both human relations and societal-systemic development processes. The Center continually monitors political behavior in each of the world's major states and reports on emerging issues and persisting conditions related to the problems of political violence and "state failure." A dataset with these and other international measures can be downloaded from here. Used with permission.

Freedom House: An independent non-governmental organization that offers measures of the extent to which governments are accountable to their own people; the rule of law prevails; and freedoms of expression, association, belief and respect for the rights of minorities and women are guaranteed. A dataset with these and the other international measures highlighted on the country pages can be downloaded from this website. Used with permission.

Varieties of Democracy (V-Dem): V-Dem provides a multidimensional and disaggregated dataset that reflects the complexity of the concept of democracy as a system of rule that goes beyond simple presence of elections. The V-Dem project distinguishes between seven high-level principles of democracy: electoral, liberal, participatory, deliberative, egalitarian, majoritarian, and consensual, and collects data to measure these principles. A dataset with these and other international measures can be downloaded from here. Used with permission.

CIA's World Factbook: An annual summary and update to the now defunct National Intelligence Survey (NIS) studies. The first classified Factbook was published in August 1962, and the first unclassified version was published in June 1971. The NIS program was terminated in 1973 except for the Factbook, map, and gazetteer components. The 1975 Factbook was the first to be made available to the public with sales through the US Government Printing Office (GPO). The year 2010 marks the 67th year of the World Factbook and its predecessor programs. The maps and flags are also from the World Factbook, which is an open source. Used with permission.

The Heritage Foundation/Wall Street Journal Index of Economic Freedom: A systematic, empirical measurement of economic freedom in countries throughout the world. A set of objective economic criteria are used to study and grade various countries for the annual publication of the Index of Economic Freedom. A dataset with these and the other international measures highlighted on the country pages can be downloaded from this website. Used with permission.

The United Nations' Human Development Reports: Provide data and statistical analysis in various areas of human development. The Human Development Report (HDR) presents two types of statistics: the human development indicator tables, which provide a global assessment of country achievements in different areas of human development, and thematic statistical analysis. A dataset with these and the other international measures highlighted on the country pages can be downloaded from this website. Used with permission. The 2013 Gender Inequality Index is drawn from this source and is a composite measure reflecting inequality in achievements between women and men in three dimensions: reproductive health, empowerment and the labor market. It varies between zero (when women and men fare equally) and one (when men or women fare poorly compared to the other in all dimensions). The health dimension is measured by two indicators: maternal mortality ratio and the adolescent fertility rate. The empowerment dimension is also measured by two indicators: the share of parliamentary seats held by each sex and by secondary and higher education attainment levels. The labor dimension is measured by women’s participation in the work force. Used with permission.

Correlates of War Project: This project seeks to facilitate the collection, dissemination, and use of accurate and reliable quantitative data in international relations. Correlates of War data may be accessed through the above link. Military data was drawn from the National Material Capabilities (v4.0) dataset. Used with permission.

The World Values Survey: A worldwide investigation of socio-cultural and political change. It is conducted by a network of social scientists at leading universities around the world. Interviews have been carried out with nationally representative samples of the publics of more than 80 societies. A total of four waves have been carried out since 1981. The ARDA has averaged the weighted responses across the waves for each country surveyed. The average responses for all countries have been placed in a single file and can be previewed and downloaded here. See the World Values Survey website for further information and to download the original survey data: http://www.worldvaluessurvey.org/. Used with permission.

Note on Regional Values: The values for the United Nations' regions are calculated from the country values in that region. We utilized two methods for computing our regional calculations: adding country measures (population, area, adherents etc.) and computing weighted averages of indexes and composite measures (life expectancy, indexes etc.). When more than 50% of the nations failed to report composite measures, we did not compute regional rates.



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