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PRWP

Reproducibility package for A New Global Subnational Poverty And Inequality Database Based On Harmonized Household Surveys

2026
Get Reproducibility Package
Reference ID
PP_WLD_2026_649
Author(s)
Hai-Anh H. Dang, Minh C. Nguyen, Ben James Brunckhorst, Judy Yang
Collections
World Bank Policy Research Working Papers
Metadata
JSON
Created on
Jun 30, 2026
Last modified
Jun 30, 2026
  • Overview
  • Reproducibility Package
  • Description
  • Scope and coverage
  • Disclaimer
  • Access and rights
  • Contacts
  • Information on metadata

    • Overview

    Abstract

    Subnational data on household welfare helps identify and monitor locations with high concentration of poverty and inequality, resulting in more efficient policy interventions. Yet, very few global databases on poverty and inequality exist at the subnational level. Using the World Bank’s Global Monitoring Database (GMD) of more than 1,250 harmonized, official household (consumption or income) surveys from 172 economies, we present two new global datasets that focus on poverty and inequality at the subnational level: the Subnational Poverty and Inequality Database (SPID) and the Global Subnational Atlas of Poverty (GSAP). SPID, a (unbalanced) panel data set, allows for analysis of longitudinal changes of subnational poverty and inequality within countries based on direct survey estimates. GSAP, a cross-sectional dataset, offers direct and lined-up estimates for nearly all regions in the world for multiple common years. The datasets can also be matched with other georeferenced datasets, such as on natural disasters or climate change, to provide richer analysis.

    Reproducibility Package

    Scripts
    Get Reproducibility Package
    File name
    RR_WLD_2026_649
    Zip package
    RR_WLD_2026_649.zip
    Title
    Reproducibility package for A New Global Subnational Poverty And Inequality Database Based On Harmonized Household Surveys
    Date
    2026-06
    Dependencies
    Stata dependencies are listed in the ado folder.
    Instructions
    See README in reproducibility package.
    Notes
    Computational reproducibility verified by Development Impact (DECDI) Analytics team, World Bank.
    Source code repository
    Repository name URI
    Reproducible Research Repository (World Bank) https://reproducibility.worldbank.org
    Software
    Name
    Stata
    Version
    19.5 MP
    Name
    Tableau
    Version
    2024

    Reproducibility

    Technology environment

    Paper exhibits were reproduced on a computer with the following specifications:
    • OS: Windows 11 Enterprise
    • Processor: Intel(R) Xeon(R) Gold 6226R CPU @ 2.90GHz
    • Memory available: 32.0 GB
    Technology requirements

    Runtime: ~10 minutes.
    Reproduction instructions

    To reproduce the findings in this paper, a replicator must:

    1. Run the Package:
    • Update the working directory of the do-file SD paper tables.do, and run it.
    1. Reproduce Tableau figures:
    • Two figures use Tableau. To replicate them, open the Tableau package file and load the corresponding CSV data file. Further details are provided in the README.

    Data

    Datasets
    Name
    Subnational Poverty and Inequality Database (SPID) – Version 5
    Note
    Source: World Bank Development Data Hub. Access date: November, 2025. File location: Database - "02.input"; Shapefiles - "05.maps\boundaries" File names: Database - SPID_Subnational_AM25_allgroups_external.dta; Shapefiles: am25_admin0.dta; am25_admin0_shp.dta; AM25_subnat_em.dta; AM25_subnat_em_shp.dta.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Creative Commons Attribution 4.0 (CC-BY 4.0)
    License URL
    https://datacatalog.worldbank.org/public-licenses?fragment=cc
    Data URL
    https://datacatalog.worldbank.org/search/dataset/0064796/subnational-poverty-and-inequality-database-spid
    Citation
    World Bank. (2025). Subnational Poverty and Inequality Database (SPID) [Dataset]. World Bank. https://datacatalog.worldbank.org/search/dataset/0064796/subnational-poverty-and-inequality-database-spid. Accessed on November 2025.
    Name
    Global Subnational Poverty Atlas (GSAP) – Version 7
    Note
    Source: World Bank Development Data Hub. Access date: November, 2025. File location: Database - "02.input"; Shapefiles - "05.maps\boundaries" File names: Database - GSAP_lineup2010_external.dta; GSAP_lineup2019_external.dta; GSAP_lineup2021_external.dta; GSAP_lineup2023_external.dta. Shapefiles: GSAP_AM25_2023.dta; GSAP_AM25_2023_shp.dta.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Creative Commons Attribution 4.0 (CC-BY 4.0)
    License URL
    https://datacatalog.worldbank.org/public-licenses?fragment=cc
    Data URL
    https://datacatalog.worldbank.org/search/dataset/0042041/global-subnational-poverty-atlas-gsap
    Citation
    World Bank. (2025). Global Subnational Poverty Atlas (GSAP) [Dataset]. World Bank. https://datacatalog.worldbank.org/search/dataset/0042041/global-subnational-poverty-atlas-gsap Accessed on November 2025.
    Name
    Poverty and Inequality Platform (PIP)
    Note
    Source: World Bank Poverty and Inequality Platform, retrieved via Stata pip wrapper. Access date: November 2025. File location: "03.intermediate". File names: PIP_300_2021.dta.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Citation
    World Bank. (2025). Poverty and Inequality Platform [dataset]. pip.worldbank.org. Accessed on January 2026.
    Name
    World Bank Country and Lending Groups (CLASS)
    Note
    Source: Global Poverty and Inequality Team, World Bank. Access date: November 2025. File location: "02.input". File names: CLASS.dta.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Data URL
    https://github.com/GPID-WB/Class/blob/master/OutputData/CLASS.dta
    Citation
    World Bank. (2025). World Bank Country and Lending Groups [Dataset]. World Bank. https://datahelpdesk.worldbank.org/knowledgebase/articles/906519-world-bank-country-and-lending-groups Accessed on September 2025.
    Name
    Data Coverage Poverty (Authors' Compilation)
    Note
    Source: Authors' manual compilation based on the availability of subnational data points or number of survey-representative areas for each country from the SPID database. The layer names are based on each country specific information of administrative divisions. File location: "02.input". File names: data_coverage_poverty.csv.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Name
    World Bank Official Boundaries
    Note
    Source: World Bank Development Data Hub. Access date: November, 2025. File location: "05.maps". File names: WLD_ADM0.dta; WLD_ADM0_shp.dta.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Creative Commons Attribution 4.0 (CC-BY 4.0)
    License URL
    https://datacatalog.worldbank.org/public-licenses?fragment=cc
    Data URL
    https://datacatalog.worldbank.org/search/dataset/0038272/World-Bank-Official-Administrative-Boundaries
    Citation
    World Bank. (2024). World Bank Official Administrative Boundaries (Version 3). World Bank Data Catalog. https://datacatalog.worldbank.org/search/dataset/0038272/world-bank-official-boundaries
    Data statement

    All data sources are publicly available and included in the reproducibility package.

    Description

    Output
    Type
    Working Paper
    Title
    A New Global Subnational Poverty And Inequality Database Based On Harmonized Household Surveys
    Description
    Policy Research Working Papers (PRWP)
    Authors
    Author Affiliation Email
    Hai-Anh H. Dang World Bank hdang@worldbank.org
    Minh C. Nguyen World Bank mnguyen3@worldbank.org
    Ben James Brunckhorst World Bank bbrunckhorst@worldbank.org
    Judy Yang World Bank jyang4@worldbank.org
    Date of production

    2026-06-04

    Scope and coverage

    Geographic locations
    Location Code
    World WLD

    Disclaimer

    Disclaimer

    The materials in the reproducibility packages are distributed as they were prepared by the staff of the International Bank for Reconstruction and Development/The World Bank. The findings, interpretations, and conclusions expressed in this event do not necessarily reflect the views of the World Bank, the Executive Directors of the World Bank, or the governments they represent. The World Bank does not guarantee the accuracy of the materials included in the reproducibility package.

    Access and rights

    License
    Name URI
    MIT License https://opensource.org/license/mit
    World Bank IGO Rider https://github.com/worldbank/metadata-editor/blob/main/WB-IGO-RIDER.md

    Contacts

    Contacts
    Name Affiliation Email
    Hai-Anh H. Dang World Bank hdang@worldbank.org
    Reproducibility WBG World Bank reproducibility@worldbank.org

    Information on metadata

    Producers
    Name Abbreviation Affiliation Role
    Reproducibility WBG DECDI World Bank - Development Impact Department Verification and preparation of metadata
    Date of Production

    2026-06-04
    Document version

    1
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