Global subnational Gini coefficient (income inequality) and gross national income (GNI) per capita PPP datasets for 1990-2021
2025-03-25, 2025-03-25
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dataset
dataset
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This dataset provides a gridded subnational datasets for
Income inequality (Gini coefficient) at admin 1 level
Gross national income (GNI) per capita PPP at admin 1 level
The datasets are based on reported subnational admin data and spans three decades from 1990 to 2021.
The datasets are presented in details in the following publication. Please cite this paper when using data.
Chrisendo D, Niva V, Hoffman R, Sayyar SM, Rocha J, Sandström V, Solt F, Kummu M. 2024. Income inequality has increased for over two-thirds of the global population. Preprint. doi: https://doi.org/10.21203/rs.3.rs-5548291/v1
Code is available at following repositories:
Gini coefficient data creation: https://github.com/mattikummu/subnatGini
GNI per capita data creation: https://github.com/mattikummu/subnatGNI
analyses for the article: https://github.com/mattikummu/gini_gni_analyses
The following data is given (formats in brackets)
Income inequality (Gini coefficient) at admin 0 level (national) (GeoTIFF, gpkg, csv)
Income inequality (Gini coefficient) at admin 1 level (subnational) (GeoTIFF, gpkg, csv)
Gross national income (GNI) per capita PPP at admin 0 level (national) (GeoTIFF, gpkg, csv)
Gross national income (GNI) per capita PPP at admin 1 level (subnational) (GeoTIFF, gpkg, csv)
Slope for Gini coefficient at admin 1 level (GeoTIFF; slope is given also in gpk and csv files)
Slope for GNI per capita (log10) at admin 1 level (GeoTIFF; slope is given also in gpk and csv files)
Input data for the script that was used to generate the Gini coefficient (input_data_gini.zip)
Input data for the script that was used to generate the GNI per capita PPP (input_data_GNI.zip)
Files are named as followsFormat: raster data (GeoTIFF) starts with rast_*, polygon data (gpkg) with polyg_*, and tabulated with tabulated_*. Admin levels: adm0 for admin 0 level, adm1 for admin 1 levelProduct type:
_gini_disp_ for gini coefficient based on disposable income
_gni_perCapita_ for GNI per capita PPP
Metadata
Grids
Resolution: 5 arc-min (0.083333333 degrees)
Spatial extent: Lon: -180, 180; -90, 90 (xmin, xmax, ymin, ymax)
Coordinate ref system: EPSG:4326 - WGS 84
Format: Multiband geotiff; one band for each year over 1990-2021
Unit: no unit for Gini coefficient and PPP USD in 2017 international dollars for GNI per capita
Geospatial polygon (gpkg) files:
Spatial extent: -180, 180; -90, 83.67 (xmin, xmax, ymin, ymax)
Temporal extent: annual over 1990-2021
Coordinate ref system: EPSG:4326 - WGS 84
Format: gkpk
Unit: no unit for Gini coefficient and PPP USD in 2017 international dollars for GNI per capita
Version 2 changes (20.03.2025)
- admin area names added to tabulated and gpkg files
- slope in tabulated data rounded correctly
- GNI per capita data for Nauru updated (scaled based on Tuvalu)