A data set of Theil inequality measures across sectors within counties; between counties within states, and between counties for the United States, 1969-2022. Data are harmonized across SIC and NAICS codes. Zip file includes data in .dta and .csv formats, and a codebook. Work by Dr. Jaehee Choi, Duke Kunshan University. Posted on December 18, 2025.

Estimated Household Income Inequality Data Set (EHII) - is a global dataset, derived from the econometric relationship between UTIP-UNIDO, other conditioning variables, and the World Bank's Deininger & Squire data set.

Note: The data set has been revised and updated for the years 1963-2015, with support from INET. Full documentation will follow and further revisions are possible.

UTIP- UNIDO is a global data set that calculates the industrial pay-inequality measures for 151 countries from 1963-2015. It has a total of 4882 observations based on the UNIDO Industrial Statistics.

Note: The data set has been revised and updated for the years 1963-2015, with support from INET. Full documentation will follow and further revisions are possible.

Political regime data set is an original categorical data set on regimes for 210 countries from 1946-2006.

National and regional inequality data set using income and employment for nine sectors within each of the twenty four regions, annually from 1994 to 2005.

National and regional inequality data set using income and employment for three sectors and fouurteen subsectors, monthly from July 1994 to April 2006.

National and regional inequality data set using income and employment for sixteen sectors within each of the twenty eight regions, annually from 1996 to 2005.

National and regional data inequality set for China using wage and employment statistics of 19 industrial sectors within each province of China for each year from 1987 to 2012.

National and regional inequality data set using income and employment for nine sectors within each of the fifteen regions, annually from 1991 to 2001.

National and regional inequality data set for Europe using Eurostat's REGIO regional data sets on employment and compensation statistics for 271 provinces and 6 sectors from 2001 to 2010.

National and regional inequality data set for India using emolument and employment statistics of the manufacturing sector and of 25 sub-sectors for the various states of India. The data range from 1979 to 1998.

National and regional inequality data set for Russia using income and employment statistics of fourteen sectors of each province of Russia for each year from 1990 to 2000.

National and industrial inequality data set for Taiwan using wage and employment statistics for more than 35 industries. The data range from 1979 to 2006.

A full consistent inequality set for Turkey by NUTS-2 regions and by nine sub-sectors The data range from 1980 to 2013.

Yearly estimates of state Gini coefficients 1969 - 2014

A vector of estimated household income segregation, between census blocks within states, for 1999. This data set is explained in Galbraith and Hale, "State Income Inequality and Presidential Election Turnout and Outcomes", forthcoming in the Social Science Quarterly.