Database
World Income Inequality Database - WIID

With this current WIID version, the observations now reach the year 2018 and coverage is extended to 201 countries (including historical entities), with over 11,000 data points in total. There are now more than 3,600 unique country-year observations in the database. Read more about the observation composition here

Excel Stata User guide Revision note
File WIID.xlsx Package icon WIID.zip PDF icon WIID User Guide.pdf PDF icon WIID Version Note.pdf

Please contact the WIID team for any questions about the database. We also encourage comments on this version and contributions of updated data points.The database will be updated and notifications and details about the updates will be given on the website. Some minor corrections can be done without a change in the database version. Please cite this database version (along with the version date 17 December, 2019) as UNU-WIDER, World Income Inequality Database (WIID).