# Inequality comparisons across time and datasets ## About this dataset The Poverty and Inequality Platform (PIP) is an interactive computational tool that offers users quick access to the World Bank’s estimates of poverty, inequality, and shared prosperity. PIP provides a comprehensive view of global, regional, and country-level trends for over 170 economies around the world. ## Data ### World Inequality Database (WID) Table: `inequality_comparison` The World Inequality Database (WID.world) aims to provide open and convenient access to the most extensive available database on the historical evolution of the world distribution of income and wealth, both within countries and between countries. 438 rows × 12 columns. #### How to cite this data World Inequality Database (WID.world) (2026); World Bank Poverty and Inequality Platform (2026) – with major processing by Our World in Data. #### Indicators ##### Region name Region name. Column: `country` Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) ##### year Column: `year` Date range: 1990–2019 ##### ref_year Column: `ref_year` Date range: 1990–2019 ##### reference_years Column: `reference_years` Date range: 1990–2019 ##### only_all_series Column: `only_all_series` Date range: 1990–2019 ##### gini_pip_disposable_percapita Column: `gini_pip_disposable_percapita` Date range: 1990–2019 Sources: World Bank Poverty and Inequality Platform – World Bank Poverty and Inequality Platform (PIP) (2026) ##### gini_wid_pretaxnational_peradult Column: `gini_wid_pretaxnational_peradult` Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) ##### p90p100share_pip_disposable_percapita Column: `p90p100share_pip_disposable_percapita` Unit: % Date range: 1990–2019 Sources: World Bank Poverty and Inequality Platform – World Bank Poverty and Inequality Platform (PIP) (2026) ##### p90p100share_wid_pretaxnational_peradult Column: `p90p100share_wid_pretaxnational_peradult` Unit: % Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) ##### p99p100share_wid_pretaxnational_peradult Column: `p99p100share_wid_pretaxnational_peradult` Unit: % Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) ##### palmaratio_pip_disposable_percapita Column: `palmaratio_pip_disposable_percapita` Date range: 1990–2019 Sources: World Bank Poverty and Inequality Platform – World Bank Poverty and Inequality Platform (PIP) (2026) ##### palmaratio_wid_pretaxnational_peradult Column: `palmaratio_wid_pretaxnational_peradult` Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) #### Sources ##### World Inequality Database (WID.world) – World Inequality Database (WID) (2026) The World Inequality Database (WID.world) aims to provide open and convenient access to the most extensive available database on the historical evolution of the world distribution of income and wealth, both within countries and between countries. Producer: World Inequality Database (WID.world) Published: 2026 Retrieved on: 2026-07-07 Retrieved from: https://wid.world Citation: World Inequality Database (WID), https://wid.world ##### World Bank Poverty and Inequality Platform – World Bank Poverty and Inequality Platform (PIP) (2026) The Poverty and Inequality Platform (PIP) is an interactive computational tool that offers users quick access to the World Bank’s estimates of poverty, inequality, and shared prosperity. PIP provides a comprehensive view of global, regional, and country-level trends for over 170 economies around the world. Producer: World Bank Poverty and Inequality Platform Published: 2026-09-22 Retrieved on: 2026-09-22 Retrieved from: https://pip.worldbank.org Citation: World Bank (2026). Poverty and Inequality Platform (version 20260922_2021 and 20260922_2017) [Data set]. World Bank Group. https://pip.worldbank.org/. ### World Inequality Database (WID) Table: `inequality_comparison_analysis` The World Inequality Database (WID.world) aims to provide open and convenient access to the most extensive available database on the historical evolution of the world distribution of income and wealth, both within countries and between countries. 662 rows × 16 columns. #### How to cite this data World Inequality Database (WID.world) (2026); World Bank Poverty and Inequality Platform (2026) – with minor processing by Our World in Data. #### Indicators ##### Region name Region name. Column: `country` Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) ##### year Column: `year` Date range: 1990–2019 ##### ref_year Column: `ref_year` Date range: 1990–2019 ##### reference_years Column: `reference_years` Date range: 1990–2019 ##### excluded_years Column: `excluded_years` Date range: 1990–2019 ##### maximum_distances Column: `maximum_distances` Date range: 1990–2019 ##### only_all_series Column: `only_all_series` Date range: 1990–2019 ##### pipwelfare Column: `pipwelfare` Date range: 1990–2019 ##### pipreportinglevel Column: `pipreportinglevel` Date range: 1990–2019 ##### gini_pip_disposable_perCapita Column: `gini_pip_disposable_percapita` Date range: 1990–2019 Sources: World Bank Poverty and Inequality Platform – World Bank Poverty and Inequality Platform (PIP) (2026) ##### gini_wid_pretaxNational_perAdult Column: `gini_wid_pretaxnational_peradult` Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) ##### p90p100Share_pip_disposable_perCapita Column: `p90p100share_pip_disposable_percapita` Date range: 1990–2019 Sources: World Bank Poverty and Inequality Platform – World Bank Poverty and Inequality Platform (PIP) (2026) ##### p90p100Share_wid_pretaxNational_perAdult Column: `p90p100share_wid_pretaxnational_peradult` Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) ##### p99p100Share_wid_pretaxNational_perAdult Column: `p99p100share_wid_pretaxnational_peradult` Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) ##### palmaRatio_pip_disposable_perCapita Column: `palmaratio_pip_disposable_percapita` Date range: 1990–2019 Sources: World Bank Poverty and Inequality Platform – World Bank Poverty and Inequality Platform (PIP) (2026) ##### palmaRatio_wid_pretaxNational_perAdult Column: `palmaratio_wid_pretaxnational_peradult` Date range: 1990–2019 Sources: World Inequality Database (WID.world) – World Inequality Database (WID) (2026) #### Sources ##### World Inequality Database (WID.world) – World Inequality Database (WID) (2026) The World Inequality Database (WID.world) aims to provide open and convenient access to the most extensive available database on the historical evolution of the world distribution of income and wealth, both within countries and between countries. Producer: World Inequality Database (WID.world) Published: 2026 Retrieved on: 2026-07-07 Retrieved from: https://wid.world Citation: World Inequality Database (WID), https://wid.world ##### World Bank Poverty and Inequality Platform – World Bank Poverty and Inequality Platform (PIP) (2026) The Poverty and Inequality Platform (PIP) is an interactive computational tool that offers users quick access to the World Bank’s estimates of poverty, inequality, and shared prosperity. PIP provides a comprehensive view of global, regional, and country-level trends for over 170 economies around the world. Producer: World Bank Poverty and Inequality Platform Published: 2026-09-22 Retrieved on: 2026-09-22 Retrieved from: https://pip.worldbank.org Citation: World Bank (2026). Poverty and Inequality Platform (version 20260922_2021 and 20260922_2017) [Data set]. World Bank Group. https://pip.worldbank.org/. ## How we process data Preparing this data involves several processing steps. Depending on the data, this can include standardizing country names and world region definitions, converting units, calculating derived indicators such as per capita measures, and adding or adapting metadata such as the name or the description given to an indicator. An indicator can therefore draw on more than one source, for example when we stitch together data from different periods by different producers, or when we calculate per capita measures using population data from a second source. [Read about our data pipeline](https://docs.owid.io/projects/etl/). ## License Our World in Data collects and republishes this data; it is not the original producer. The licenses of the original sources still apply; each source above links to the producer's site, where its terms are stated. It is your responsibility to check that your use of the data is permitted by them, and to credit the sources correctly. ## Advanced download options - Catalog page: - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/ - World Inequality Database (WID) - Links to the latest data. They always give you the newest release: - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison.csv - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison.xlsx - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison.parquet - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison.codebook.csv - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison.sources.csv - Links to this version (2025-01-22). They keep pointing at this version after newer releases: - https://catalog.ourworldindata.org/garden/poverty_inequality/2025-01-22/inequality_comparison/inequality_comparison.parquet - https://catalog.ourworldindata.org/garden/poverty_inequality/2025-01-22/inequality_comparison/inequality_comparison.feather - https://catalog.ourworldindata.org/garden/poverty_inequality/2025-01-22/inequality_comparison/inequality_comparison.meta.json - World Inequality Database (WID) - Links to the latest data. They always give you the newest release: - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison_analysis.csv - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison_analysis.xlsx - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison_analysis.parquet - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison_analysis.codebook.csv - https://catalog.ourworldindata.org/poverty_inequality/inequality_comparison/inequality_comparison_analysis.sources.csv - Links to this version (2025-01-22). They keep pointing at this version after newer releases: - https://catalog.ourworldindata.org/garden/poverty_inequality/2025-01-22/inequality_comparison/inequality_comparison_analysis.parquet - https://catalog.ourworldindata.org/garden/poverty_inequality/2025-01-22/inequality_comparison/inequality_comparison_analysis.feather - https://catalog.ourworldindata.org/garden/poverty_inequality/2025-01-22/inequality_comparison/inequality_comparison_analysis.meta.json - Source code: - https://github.com/owid/etl/tree/master/etl/steps/data/garden/poverty_inequality/2025-01-22/