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Database
WIID3.3
Note | Newer version available. Go to WIID4.
| Excel | Stata | User Guide | Revision note |
|---|---|---|---|
 WIID3.3 |
 WIID3.3.zip |
 WIID3.3 user guide.pdf |
WIID3.3 revision note.pdf |
The current revision―WIID3.3―is an annual update of the third major revision of the database, WIID3. The data cover new countries, and nearly 2000 new observations have been added since WIID2.0. The current update includes observations for eight more years, with the latest observations now reaching the year 2013.
The database will be updated and notifications and details on the updates will be given on the website. Some minor corrections can be done without a change of the database version. Please cite this database version as UNU-WIDER, ‘World Income Inequality Database (WIID3c)’, September 2015, https://www.wider.unu.edu/project/wiid-world-income-inequality-database'
Please contact the database manager for any questions on the database. We also encourage comments on this revision and contributions of updated data points
Please note that we are still in the process of updating the Reference's list.
Countries or areas included |
179 |
| East Asia and Pacific | 21 |
| Europe and Central Asia | 27 |
| Latin America and Caribbean | 29 |
| Middle East and North Africa | 10 |
| OECD | 33 |
| South Asia | 8 |
| Sub-Saharan Africa | 47 |
Observations |
|
| Gini coefficients | 6854 |
| Income distribution by any quantile share | 3752 |
Time span |
|
| Before 1960 | 308 |
| 1960-1979 | 1424 |
| 1980-1989 | 1170 |
| 1990-1999 | 2074 |
| 2000-2012 | 2038 |
Quality ratings |
|
| 1 where the underlying concepts are known | 2837 |
| 2 survey or income concept partially known | 1924 |
| 3 both income and consumption concepts are problematic | 1845 |
| 4 not known | 404 |