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PRWP

Reproducibility package for Measuring Income Inequality And Redistribution In Low-Income Countries: Evidence From Nepal

2026
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Reference ID
RR_NPL_2026_648
Author(s)
Amory Gethin, Alvin Etang
Collections
World Bank Policy Research Working Papers
Metadata
JSON
Created on
May 06, 2026
Last modified
May 11, 2026
Page views
1
  • Project Description
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  • Overview
  • Reproducibility Package
  • Description
  • Scope and coverage
  • Disclaimer
  • Access and rights
  • Contacts
  • Information on metadata
  • Overview

    Abstract

    Inequality statistics in low-income countries typically rely on consumption data, limiting comparability with income inequality measures used in middle- and high-income countries. This is mainly because measuring the distribution of income is challenging in low-income countries due to the prevalence of informality, misreporting, and conceptual issues. This paper combines rich survey microdata, government budget data, and a novel correction method for the underrepresentation of top incomes to construct pretax and post tax inequality statistics in the context of Nepal. After correcting top incomes and accounting for missing capital income, income inequality in Nepal is 80% higher than consumption inequality, shifting Nepal from being more equal than France to almost as unequal as Latin American countries such as Guatemala, Honduras, or Peru. Taxes and transfers have limited impact on inequality due to regressive consumption taxes and poorly targeted social programs. Our income estimates fall close to aggregate output recorded in the national accounts, suggesting that the construction of inequality statistics consistent with macroeconomic growth is feasible even in low-income countries with scarce data. Our methodology only requires a household survey and aggregate tax revenue series by type of tax, making it easily applicable across a wide range of countries.

    Reproducibility Package

    Scripts
    Readme Get Reproducibility Package
    Link: https://reproducibility.worldbank.org/catalog/548/download/1620/README.pdf
    Reproducibility package for Measuring Income Inequality And Redistribution In Low-Income Countries: Evidence From Nepal
    File name
    RR_NPL_2026_648
    Zip package
    RR_NPL_2026_648.zip
    Title
    Reproducibility package for Measuring Income Inequality And Redistribution In Low-Income Countries: Evidence From Nepal
    Date
    2026-05
    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
    Stata
    Name
    Stata
    Version
    19.0 MP

    Reproducibility

    Technology environment

    Paper exhibits were reproduced on a computer with the following specifications:
    • OS: Windows 11 Enterprise
    • Processor: INTEL(R) XEON(R) PLATINUM 8562Y+ (2.80 GHz) (4 processors)
    • Memory available: 32.0 GB

    Technology requirements

    Run time: ~ 5 minutes

    Reproduction instructions

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

    1. Secure Access to Data: Access the datasets not included in the package. See the Datasets section for more details.
    2. Run the Package:
    • Update the working directory in line 14 of the do-file master, and run it.

    Since all the original data cannot be redistributed, the package includes the outputs produced by the authors, which can be used to review the results presented in the paper.

    Data

    Datasets
    Nepal Government Revenue and Expenditure Data
    Name
    Nepal Government Revenue and Expenditure Data
    Note
    Data accessed in May 2025. Provided directly to the authors by the Government of Nepal. Contains publicly available series on aggregate government revenue and expenditure used in the analysis. File locations: data/macro/government-budget.xlsx; data/macro/government-revenue.xlsx.
    Access policy
    Data is publicly available and included in the reproducibility package.
    Citation
    Government of Nepal. 2025. "Government Budget and Revenue Series" [dataset]. Unpublished data shared directly by the Government of Nepal. Accessed May 2025.
    World Inequality Database
    Name
    World Inequality Database
    Note
    Data accessed in May 2025. Series used: per capita national income in PPP USD (anninc999i), total population (npopul999i), deflator (inyixx999i), and PPP conversion factor (xlcusp999i), for all countries in 2022. Data can be downloaded from https://wid.world/ or directly in Stata by installing the WID command (ssc install wid) and running: wid, ind(anninc npopul inyixx xlcusp) years(2022) pop(i) ag(999) clear. File location: data/work/global-macro.dta.
    Access policy
    Data is publicly available and included in the reproducibility package.
    Data URL
    https://wid.world/data/
    Citation
    World Inequality Lab. 2025. "World Inequality Database" [dataset]. http://wid.world/. Accessed May 2025.
    Global Estimates of Tax-and-Transfer Progressivity
    Name
    Global Estimates of Tax-and-Transfer Progressivity
    Note
    Data accessed in May 2025. Dataset constructed by the authors of Fisher-Post and Gethin (2025). Contains pretax and posttax income by generalized percentile for all countries in 2022 File location: data/work/fisher-gethin-redistribution.dta.
    Access policy
    Data is publicly available and included in the reproducibility package.
    Data URL
    https://amory-gethin.fr/data.html
    Citation
    Fisher-Post, M. and Gethin, A. 2025. "Government Redistribution and Development: Global Estimates of Tax-and-Transfer Progressivity, 1980–2023" [dataset]. https://amory-gethin.fr/data.html. Accessed May 2025.
    Nepal Living Standards Survey IV, 2022/2023
    Name
    Nepal Living Standards Survey IV, 2022/2023
    Note
    Data accessed in May 2025. Available for purchase by contacting the Nepal National Statistics Office at microdata@cbs.gov.np. File location: data/nlss/NLSS IV 2022-23/.
    Access policy
    Data access was granted directly to the study authors by the data owners/managers. It was obtained with a custom data license that does not allow for redistribution and it is not included in the reproducibility package.
    Citation
    National Statistics Office of Nepal. 2025. "Nepal Living Standards Survey IV, 2022/2023" [dataset]. Unpublished data shared directly by Nepal National Statistics Office. Accessed May 2025.
    Data statement

    Some data is restricted and has not been included in the reproducibility package. For more details, please refer to the README file.

    Description

    Output
    Measuring Income Inequality And Redistribution In Low-Income Countries: Evidence From Nepal
    Type
    Working Paper
    Title
    Measuring Income Inequality And Redistribution In Low-Income Countries: Evidence From Nepal
    Description
    Policy Research Working Papers (PRWP)
    Authors
    Author Affiliation Email
    Amory Gethin World Bank agethin@worldbank.org
    Alvin Etang World Bank aetangndip@worldbank.org
    Date of production

    2026-05-05

    Scope and coverage

    Geographic locations
    Location Code
    Nepal NPL
    Keywords
    Poverty Inequality Measurement
    Topics
    ID Topic Parent topic ID Vocabulary Vocabulary URI
    D31 Personal Income, Wealth, and Their Distributions D3 Journal of Economic Literature (JEL)
    E01 Measurement and Data on National Income and Product Accounts and Wealth • Environmental Accounts E0 Journal of Economic Literature (JEL)
    H23 Externalities • Redistributive Effects • Environmental Taxes and Subsidies H2 Journal of Economic Literature (JEL)
    H24 Personal Income and Other Nonbusiness Taxes and Subsidies H2 Journal of Economic Literature (JEL)
    H50 General H5 Journal of Economic Literature (JEL)
    I38 Government Policy • Provision and Effects of Welfare Programs I3 Journal of Economic Literature (JEL)

    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
    Amory Gethin World Bank agethin@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

    2026-05-05

    Document version

    1

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