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The Standardized World Income Inequality Database (SWIID) is a database implemented by professor Frederick Solt that allows users to analyze and compare the state of inequality in 196 countries.
The Standardized World Income Inequality Database contains data for as many years as possible from 1960 to the present and offers datasets (downloadable in .csv format) and visualizations (downloadable in .pdf format) about Gini indices’ trends in two forms (inequality in disposable income, inequality in market income) and absolute or relative redistribution of wealth indicators.
The database incorporates data from the OECD Income Distribution Database, the Socio-Economic Database for Latin America and the Caribbean generated by CEDLAS and the World Bank, Eurostat, the World Bank’s PovcalNet, the UN Economic Commission for Latin America and the Caribbean, national statistical offices around the world, and academic studies.
The goal of the Standardized World Income Inequality Database (SWIID) is to meet the needs of those engaged in broadly cross-national research by maximizing the comparability of income inequality data while maintaining the widest possible coverage across countries and over time.