Reproducible Research Repository
Reproducible Research Repository
  • Home
  • Repository
  • Collections
  • About
    Home / Repository / PRWP / RR_WLD_2026_613
PRWP

Reproducibility package for Horizontal Equity Of Taxation: Citizen Beliefs And Policy Preferences

2026
Get Reproducibility Package
Reference ID
RR_WLD_2026_613
Author(s)
Mahvish Shaukat, Pierre Bachas, Anders Jensen, Christopher Hoy
Collections
World Bank Policy Research Working Papers
Metadata
JSON
Created on
Apr 29, 2026
Last modified
May 19, 2026
Page views
1
  • Project Description
  • Downloads
  • Overview
  • Reproducibility Package
  • Description
  • Scope and coverage
  • Disclaimer
  • Access and rights
  • Contacts
  • Information on metadata
  • Overview

    Abstract

    Horizontal inequity occurs when employees and self-employed with the same income end up with different effective tax burdens, due to the difficulty of enforcing taxes on self-employed. Based on detailed micro-tax simulations models integrated with household surveys in 25 developing countries, we show that tax systems incur large horizontal inequities in practice and that reforms which improve vertical equity worsen horizontal equity by a comparable amount. An in-person survey in Pakistan and online surveys across multiple countries reveal widespread concern about horizontal equity. Randomized information treatments heighten this concern but do not shift tax preferences toward addressing horizontal inequity.

    Reproducibility Package

    Scripts
    Readme Get Reproducibility Package
    Link: https://reproducibility.worldbank.org/catalog/544/download/1634/README.pdf
    Reproducibility package for Horizontal Equity Of Taxation: Citizen Beliefs And Policy Preferences
    File name
    RR_WLD_2026_613
    Zip package
    RR_WLD_2026_613.zip
    Title
    Reproducibility package for Horizontal Equity Of Taxation: Citizen Beliefs And Policy Preferences
    Date
    2026-05
    Dependencies
    R dependencies are listed in the file renv.lock. 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
    19.5 MP
    R
    Name
    R
    Version
    4.5.1

    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: ~2 hours.

    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 of the do-file Reproducibility_microsimulations/dofiles/0a_-master_horizontal_equity.do, and run it.
    • Update the working directory of the do-file Reproducibility_experiments/online survey/do/1_-master.do, and run it.
    • Update the working directory of the do-file Reproducibility_experiments/inperson survey/Dofile/1_master.do, and run it.

    Since some of 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
    Benin Harmonised Survey on Household Living Conditions (EHCVM)
    Name
    Benin Harmonised Survey on Household Living Conditions (EHCVM)
    Note
    Source: National Institute of Statistics and Economic Analysis (INSAE), accessed via the World Bank internal website. Years: 2015. Access date: October 2019. File location: "Reproducibility_microsimulations\data\Surveys\raw\Benin2015".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Institute of Statistics and Economic Analysis. 2015. Benin Harmonised Survey on Household Living Conditions (EHCVM) [dataset]. Accessed in October 2019. Unpublished data.
    Brazil Consumer Expenditure Survey (POF)
    Name
    Brazil Consumer Expenditure Survey (POF)
    Note
    Source: Instituto Brasileiro de Geografia e Estatística (IBGE). Years: 2008-2009. Access date: April 2018. File location: "Reproducibility_microsimulations\data\Surveys\raw\Brazil2009".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Data URL
    https://www.ibge.gov.br/en/statistics/social/labor/17387-pof-2008-2009-en.html
    Citation
    Instituto Brasileiro de Geografia e Estatística (IBGE). 2009. Brazil Consumer Expenditure Survey [dataset]. https://www.ibge.gov.br/en/statistics/social/labor/17387-pof-2008-2009-en.html. Accessed on April 2018.
    Burkina Faso Comprehensive Survey on Household Living Conditions (EICVM)
    Name
    Burkina Faso Comprehensive Survey on Household Living Conditions (EICVM)
    Note
    Source: National Institute of Statistics and Demography (INSD), accessed via the World Bank internal website. Years: 2009. Access date: December 2019. File location: "Reproducibility_microsimulations\data\Surveys\raw\BurkinaFaso2009".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Institute of Statistics and Demography. 2009. Burkina Faso Comprehensive Survey on Household Living Conditions (EICVM) [dataset]. Accessed on December 2019. Unpublished data.
    Burundi Survey on Household Living Conditions (ECVM)
    Name
    Burundi Survey on Household Living Conditions (ECVM)
    Note
    Source: Institute of Statistics and Economic Studies (Institut de Statistiques et d'Etudes Economiques), accessed via the World Bank internal website. Years: 2014. Access date: November 2017. File location: "Reproducibility_microsimulations\data\Surveys\raw\Burundi2014".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    Institute of Statistics and Economic Studies. 2014. Burundi Survey on Household Living Conditions (ECVM) [dataset]. Accessed on November 2017. Unpublished data.
    Cameroon Household Survey (ECAM)
    Name
    Cameroon Household Survey (ECAM)
    Note
    Source: National Institute of Statistics (NIS), accessed via the World Bank internal website. Years: 2014. Access date: March 2016. File location: "Reproducibility_microsimulations\data\Surveys\raw\Cameroon2014".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Institute of Statistics (NIS). 2014. Cameroon Household Survey [dataset]. https://ins-cameroun.cm/en/. Accessed March 2016. Unpublished data.
    Chile Household Budget Survey (EPF)
    Name
    Chile Household Budget Survey (EPF)
    Note
    Source: National Institute of Statistics (Instituto Nacional de Estadísticas, INE). Years: 2017. Access date: May 2018. File location: "Reproducibility_microsimulations\data\Surveys\raw\Chile2017".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC BY-SA 4.0 (Attribution-ShareAlike 4.0 International)
    License URL
    https://creativecommons.org/licenses/by-sa/4.0/deed.en
    Data URL
    https://www.ine.gob.cl/estadisticas-por-tema/sociedad-y-condiciones-de-vida/encuesta-de-presupuestos-familiares
    Citation
    National Institute of Statistics (INE). 2017. Chile Household Budget Survey [dataset]. https://www.ine.gob.cl/estadisticas-por-tema/sociedad-y-condiciones-de-vida/encuesta-de-presupuestos-familiares. Accessed May 2018.
    Colombia National Survey of Income and Expenditure (ENIG)
    Name
    Colombia National Survey of Income and Expenditure (ENIG)
    Note
    Source: National Administrative Department of Statistics (Departamento Administrativo Nacional de Estadística, DANE). Years: 2006-2007. Access date: February 2018. File location: "Reproducibility_microsimulations\data\Surveys\raw\Colombia2007".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Data URL
    https://microdatos.dane.gov.co/index.php/catalog/204/get-microdata
    Citation
    National Administrative Department of Statistics (DANE). 2007. Colombia National Survey of Income and Expenditure [dataset]. https://microdatos.dane.gov.co/index.php/catalog/204/get-microdata. Accessed February 2018.
    Comoros Survey on Household Consumption Expenditure (EDMC)
    Name
    Comoros Survey on Household Consumption Expenditure (EDMC)
    Note
    Source: National Microdata Archive (Archive nationale de microdonnées), accessed via the World Bank internal website. Years: 2013. Access date: September 2019. File location: "Reproducibility_microsimulations\data\Surveys\raw\Comoros2013".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Microdata Archive. 2013. Survey on Household Consumption Expenditure in the Comoros (EDMC) [dataset]. Accessed on September 2019. Unpublished data.
    Congolese Household Survey for Poverty Assessment (ECOM)
    Name
    Congolese Household Survey for Poverty Assessment (ECOM)
    Note
    Source: National Statistics Institute (Institut National de la Statistique), accessed via the World Bank internal website. Years: 2005. Access date: March 2014. File location: "Reproducibility_microsimulations\data\Surveys\raw\Congo_Rep2005".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Statistics Institute. 2005. Congolese Household Survey for Poverty Assessment (ECOM) [dataset]. Accessed on March 2014. Unpublished data.
    Costa Rica National Survey of Household Income and Expenditure (ENIGH)
    Name
    Costa Rica National Survey of Household Income and Expenditure (ENIGH)
    Note
    Source: National Institute of Statistics and Census (Instituto Nacional de Estadística y Censos, INEC). Years: 2014. Access date: January 2018. File location: "Reproducibility_microsimulations\data\Surveys\raw\Costa_Rica2014".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC BY-SA 4.0 (Attribution-ShareAlike 4.0 International)
    License URL
    https://creativecommons.org/licenses/by-sa/4.0/deed.en
    Data URL
    https://inec.cr/estadisticas-fuentes/encuestas/encuesta-nacional-ingresos-gastos-los-hogares
    Citation
    National Institute of Statistics and Census (INEC). 2014. Costa Rica National Survey of Household Income and Expenditure [dataset]. https://inec.cr/estadisticas-fuentes/encuestas/encuesta-nacional-ingresos-gastos-los-hogares. Accessed January 2018.
    Democratic Republic of the Congo 1-2-3 Survey on Employment and the Informal Sector (E123)
    Name
    Democratic Republic of the Congo 1-2-3 Survey on Employment and the Informal Sector (E123)
    Note
    Source: National Statistics Institute (Institut National de la Statistique), accessed via the World Bank internal website. Years: 2005. Access date: July 2018. File location: "Reproducibility_microsimulations\data\Surveys\raw\Congo_DRC2005".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Statistics Institute. 2005. Democratic Republic of the Congo 1-2-3 Survey on Employment and the Informal Sector (E123) [dataset]. Accessed on July 2018. Unpublished data.
    Dominican Republic Household Income and Expenditure Survey (ENIGH)
    Name
    Dominican Republic Household Income and Expenditure Survey (ENIGH)
    Note
    Source: National Statistics Office, accessed via the World Bank internal website. Years: 2007-2008. Access date: June 2019. File location: "Reproducibility_microsimulations\data\Surveys\raw\Dominican_Rep2007".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Statistics Office. 2007. Dominican Republic Household Income and Expenditure Survey (ENIGH) [dataset]. Accessed on June 2019. Unpublished data.
    Ecuador National Survey of Income and Expenditure of Urban and Rural Households (ENIGHUR)
    Name
    Ecuador National Survey of Income and Expenditure of Urban and Rural Households (ENIGHUR)
    Note
    Source: National Institute of Statistics and Census (Instituto Nacional de Estadística y Censos, INEC). Years: 2012. Access date: October 2018. File location: "Reproducibility_microsimulations\data\Surveys\raw\Ecuador2012".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC BY 4.0 (Attribution 4.0 International)
    License URL
    https://creativecommons.org/licenses/by/4.0/
    Data URL
    https://www.ecuadorencifras.gob.ec/encuesta-nacional-de-ingresos-y-gastos-de-los-hogares-urbanos-y-rurales/
    Citation
    National Institute of Statistics and Census (INEC). 2012. National Survey of Income and Expenditure of Urban and Rural Households [dataset]. https://www.ecuadorencifras.gob.ec/encuesta-nacional-de-ingresos-y-gastos-de-los-hogares-urbanos-y-rurales/. Accessed October 2018.
    India National Sample Survey (NSS)
    Name
    India National Sample Survey (NSS)
    Note
    Source: Ministry of Statistics and Programme Implementation, accessed via the World Bank internal website. Years: 2012. Access date: May 2023. File location: "Reproducibility_microsimulations\data\Surveys\raw\India2012".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    Ministry of Statistics and Programme Implementation. 2012. India National Sample Survey (NSS) [dataset]. Accessed on May 2023. Unpublished data.
    Indonesia National Socio-Economic Survey (SUSENAS)
    Name
    Indonesia National Socio-Economic Survey (SUSENAS)
    Note
    Source: BPS-Statistics Indonesia (Badan Pusat Statistik), accessed via the World Bank internal website. Years: 2019. Access date: February 2020. File location: "Reproducibility_microsimulations\data\Surveys\raw\Indonesia2019".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    BPS-Statistics Indonesia. 2019. Indonesia National Socio-Economic Survey (SUSENAS) [dataset]. Accessed on February 2020. Unpublished data.
    Mexico National Survey of Household Income and Expenditure (ENIGH)
    Name
    Mexico National Survey of Household Income and Expenditure (ENIGH)
    Note
    Source: National Institute of Statistics and Geography (Instituto Nacional de Estadística y Geografía, INEGI). Years: 2014. Access date: July 2017. File location: "Reproducibility_microsimulations\data\Surveys\raw\Mexico2014".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Data URL
    https://www.inegi.org.mx/programas/enigh/tradicional/2014/
    Citation
    National Institute of Statistics and Geography (INEGI). 2014. Mexico National Survey of Household Income and Expenditure [dataset]. https://www.inegi.org.mx/programas/enigh/tradicional/2014/. Accessed July 2017.
    Montenegro Household Budget Survey (HBS)
    Name
    Montenegro Household Budget Survey (HBS)
    Note
    Source: Statistical Office of Montenegro, accessed via the World Bank internal website. Years: 2009. Access date: April 2013. File location: "Reproducibility_microsimulations\data\Surveys\raw\Montenegro2009".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    Statistical Office of Montenegro. 2009. Montenegro Household Budget Survey (HBS) [dataset]. Accessed on April 2013. Unpublished data.
    Morocco National Survey on Household Consumption and Expenditure (ENCDM)
    Name
    Morocco National Survey on Household Consumption and Expenditure (ENCDM)
    Note
    Source: High Commission for Planning of Morocco, accessed via the World Bank internal website. Years: 2001. Access date: May 2013. File location: "Reproducibility_microsimulations\data\Surveys\raw\Morocco2001".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    High Commission for Planning of Morocco. 2001. National Survey on Household Consumption and Expenditure (ENCDM) [dataset]. Accessed on May 2013. Unpublished data.
    Mozambique Household Budget Survey (IOF)
    Name
    Mozambique Household Budget Survey (IOF)
    Note
    Source: National Institute of Statistics, accessed via the World Bank internal website. Years: 2009. Access date: May 2013. File location: "Reproducibility_microsimulations\data\Surveys\raw\Mozambique2009".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Institute of Statistics. 2009. Mozambique Household Budget Survey (IOF) [dataset]. Accessed on May 2013. Unpublished data.
    Niger National Survey on Household Budgets and Consumption (ENBCM)
    Name
    Niger National Survey on Household Budgets and Consumption (ENBCM)
    Note
    Source: National Institute of Statistics (Institut National de la Statistique), accessed via the World Bank internal website. Years: 2007. Access date: May 2013. File location: "Reproducibility_microsimulations\data\Surveys\raw\Niger2007".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Institute of Statistics. 2007. Niger National Survey on Household Budgets and Consumption (ENBCM) [dataset]. Accessed on May 2013. Unpublished data.
    Pakistan Social and Living Standards Measurement (PSLM)
    Name
    Pakistan Social and Living Standards Measurement (PSLM)
    Note
    Source: Pakistan Bureau of Statistics, accessed via the World Bank internal website. Years: 2019. Access date: March 2020. File location: "Reproducibility_microsimulations\data\Surveys\raw\Pakistan2019".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    Pakistan Bureau of Statistics. 2019. Pakistan Social and Living Standards Measurement (PSLM) [dataset]. Accessed on March 2020. Unpublished data.
    Paraguay Survey of Income, Expenditure, and Consumption Value (EIGyCV)
    Name
    Paraguay Survey of Income, Expenditure, and Consumption Value (EIGyCV)
    Note
    Source: National Institute of Statistics (INE), accessed via the World Bank internal website. Years: 2011. Access date: December 2020. File location: "Reproducibility_microsimulations\data\Surveys\raw\Paraguay2011".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    National Institute of Statistics (INE). 2011. Survey of Income, Expenditure, and Consumption Value (EIGyCV) [dataset]. Accessed on December 2020. Unpublished data.
    Peru National Household Survey (ENAHO)
    Name
    Peru National Household Survey (ENAHO)
    Note
    Source: National Institute of Statistics and Informatics (INEI). Years: 2017. Access date: April 2018. File location: "Reproducibility_microsimulations\data\Surveys\raw\Peru2017".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    License URL
    https://webinei.inei.gob.pe/anda_inei/index.php/catalog/306/accesspolicy
    Data URL
    https://proyectos.inei.gob.pe/microdatos/index.htm
    Citation
    National Institute of Statistics and Informatics (INEI). 2017. Peru National Household Survey [dataset]. https://proyectos.inei.gob.pe/microdatos/index.htm. Accessed April 2018.
    Philippines Family Income and Expenditure Survey (FIES)
    Name
    Philippines Family Income and Expenditure Survey (FIES)
    Note
    Source: Philippines Statistics Authority (PSA), accessed via the World Bank internal website. Years: 2018. Access date: February 2023. File names: "2018_FIES_vol2.csv", "FIES PUF 2018 Vol.1.csv". File location: "Reproducibility_microsimulations\data\Surveys\raw\Philippines2018".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    Philippines Statistics Authority (PSA). 2018. Philippines Family Income and Expenditure Survey (FIES) [dataset]. Accessed on February 2023. Unpublished data.
    Rwanda Integrated Household Living Conditions Survey (EICV)
    Name
    Rwanda Integrated Household Living Conditions Survey (EICV)
    Note
    Source: National Institute of Statistics of Rwanda (NISR). Years: 2014. Access date: July 2016. File location: "Reproducibility_microsimulations\data\Surveys\raw\Rwanda2014".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC BY 4.0 (Attribution 4.0 International)
    License URL
    https://creativecommons.org/licenses/by/4.0/
    Data URL
    https://microdata.statistics.gov.rw/index.php/catalog/74
    Citation
    National Institute of Statistics of Rwanda (NISR). 2014. Rwanda Integrated Household Living Conditions Survey (EICV) [dataset]. https://microdata.statistics.gov.rw/index.php/catalog/74. Accessed July 2016.
    Senegal Survey on Household Spending in the Capital (EDMC)
    Name
    Senegal Survey on Household Spending in the Capital (EDMC)
    Note
    Source: National Data Archiving of Senegal (ANADS). Years: 2008. Access date: May 2019. File location: "Reproducibility_microsimulations\data\Surveys\raw\Senegal_Dakar2008".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC BY 4.0 (Attribution 4.0 International)
    License URL
    https://creativecommons.org/licenses/by/4.0/
    Data URL
    https://anads.ansd.sn/index.php/catalog/8/get-microdata
    Citation
    National Data Archiving of Senegal (ANADS). 2008. Senegal Survey on Household Spending in the Capital [dataset]. https://anads.ansd.sn/index.php/catalog/8/get-microdata. Accessed May 2019.
    Tanzania Household Budget Survey
    Name
    Tanzania Household Budget Survey
    Note
    Source: Tanzania National Bureau of Statistics. Years: 2011-2012. Access date: July 2018. File location: "Reproducibility_microsimulations\data\Surveys\raw\Tanzania2012".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Data URL
    https://microdata.nbs.go.tz/index.php/catalog/18
    Citation
    Tanzania National Bureau of Statistics. 2012. Tanzania Household Budget Survey [dataset]. https://microdata.nbs.go.tz/index.php/catalog/18. Accessed July 2018.
    Tunisia National Survey on Household Budgets, Consumption and Living Standards
    Name
    Tunisia National Survey on Household Budgets, Consumption and Living Standards
    Note
    Source: Institut National de la Statistique - Ministère de la Planification et de la Coopération Internationale, accessed via the World Bank internal website. Years: 2010. Access date: March 2015. File location: "Reproducibility_microsimulations\data\Surveys\raw\Tunisia2010".
    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. Available to World Bank Staff only. The variable_inventory.xlsx file includes the list of variables of the original dataset. For further information, please submit a request at the following link: https://forms.office.com/pages/responsepage.aspx?id=wP6iMWsmZ0y1bieW2PWcNmTmqwCI7_RHlz1s0dklU7tUMVNEWjNWN1VMMVlBMjUyNk00TlBSNjFDWC4u&route=shorturl.
    License
    Custom license
    Citation
    Institut National de la Statistique - Ministère de la Planification et de la Coopération Internationale. 2010. Tunisia National Survey on Household Budgets, Consumption and Living Standards [dataset]. Accessed on March 2015. Unpublished data.
    Country Codes
    Name
    Country Codes
    Note
    Source: The datasets/country-codes repository on GitHub, maintained by the Frictionless Data / datahub.io community. Consolidates country code information from multiple official sources, including the UN Protocol and Liaison Service (formal country names), the Unicode CLDR Project (customary English short names), the UN Statistics Division (ISO 3166 codes), currency-iso.org (ISO 4217 codes), geonames.org (capitals, languages, continents), and the SEC's EDGAR system. Access date: June 2023. File location: "Reproducibility_microsimulations\data\countrycode2d_region.csv".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Open Data Commons Public Domain Dedication and License (PDDL) v1.0
    License URL
    https://opendatacommons.org/licenses/pddl/
    Data URL
    https://datahub.io/core/country-codes
    Citation
    Frictionless Data. (2014). Country Codes [Dataset]. GitHub. https://github.com/datasets/country-codes. Accessed June 2023.
    World Bank Development Indicators (WDI)
    Name
    World Bank Development Indicators (WDI)
    Note
    Source: World Bank. Access date: varies by file (see below). File location: "Reproducibility_microsimulations\data\". Files included: - "API_NY.GDP.PCAP.PP.KD_DS2_en_excel_v2_5607670.xls" — GDP per Capita, PPP (Constant 2021 International $). Accessed July 2023. - "API_PA.NUS.PPP_DS2_en_excel_v2_5607721.xls" — PPP Conversion Factor, GDP (LCU per International $). Accessed July 2023. - "wb_stats.dta" — Country-level statistics (multiple indicators). Accessed February 2025. - "Country_information.xlsx" — Compiled by the authors. Indicators used: GDP per capita (current US$), Gini index, and PPP conversion factor. Accessed March 2021. - "wbopendata_metadata.dta" — Country metadata retrieved via Stata wbopendata command. Accessed March 2026.
    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://creativecommons.org/licenses/by/4.0/
    Data URL
    https://databank.worldbank.org/source/world-development-indicators
    Citation
    World Bank. (2023, 2025, 2026). World Development Indicators [Dataset]. https://databank.worldbank.org/source/world-development-indicators. Accessed on various dates (see note).
    TaxDev Employment Income Taxes Dataset (EITD)
    Name
    TaxDev Employment Income Taxes Dataset (EITD)
    Note
    Source: McNabb, K. (2022). Access date: November 2024. File location: "Reproducibility_microsimulations\data\TaxDevEITDv0.2.xlsx".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives 4.0 International)
    License URL
    https://creativecommons.org/licenses/by-nc-nd/4.0/
    Data URL
    https://odi.org/en/publications/the-taxdev-employment-income-taxes-dataset-and-technical-guide/
    Citation
    McNabb, K. (2022). The TaxDev Employment Income Taxes Dataset (v1.0) [Dataset]. ODI. https://odi.org/en/publications/the-taxdev-employment-income-taxes-dataset-and-technical-guide/. Accessed November 2024.
    Global Findex Database (Global Financial Inclusion) – Saving Rates
    Name
    Global Findex Database (Global Financial Inclusion) – Saving Rates
    Note
    Source: World Bank Global Findex Database (Global Financial Inclusion). Access date: July 2024. File location: "Reproducibility_microsimulations\data\saving_rates.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://creativecommons.org/licenses/by/4.0/
    Data URL
    https://datacatalog.worldbank.org/int/search/dataset/0039935
    Citation
    World Bank. (2024). Global Findex Database (Global Financial Inclusion) [Dataset]. Washington, DC: World Bank. https://datacatalog.worldbank.org/int/search/dataset/0039935. Accessed July 2024.
    Value-Added Tax (VAT) Parameters Data
    Name
    Value-Added Tax (VAT) Parameters Data
    Note
    Source: Worldwide Tax Summaries, PwC (PricewaterhouseCoopers). Access date: June 2022. File location: "Reproducibility_microsimulations\data\VAT_DATA.xlsx".
    Access policy
    Data is publicly available but does not allow redistribution and is not included in the reproducibility package.
    License
    All rights reserved (PwC proprietary)
    Data URL
    https://taxsummaries.pwc.com/quick-charts/value-added-tax-vat-rates
    Citation
    PwC. (2022). Worldwide Tax Summaries: Value-Added Tax (VAT) Rates [Dataset]. https://taxsummaries.pwc.com/quick-charts/value-added-tax-vat-rates. Accessed June 2022.
    Gethin Public Finance Statistics
    Name
    Gethin Public Finance Statistics
    Note
    Source: Gethin, A. (2024). A New Database of General Government Revenue and Expenditure by Function, 1980–2022. Access date: November 2024. File location: "Reproducibility_microsimulations\data\gethin-public-finance-statistics.dta".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Data URL
    https://amory-gethin.fr/data.html
    Citation
    Gethin, A. (2024). A New Database of General Government Revenue and Expenditure by Function, 1980–2022 [Dataset]. https://amory-gethin.fr/data.html. Accessed November 2024.
    Formality Share – Actual and Predicted
    Name
    Formality Share – Actual and Predicted
    Note
    Source: Bachas, P., Gadenne, L., and Jensen, A. (2024). Access date: November 2024. File name: "dataset_formalityshare_actualpredict.dta". File location: "Reproducibility_microsimulations\data\dataset_formalityshare_actualpredict.dta".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    CC BY 4.0 (Attribution 4.0 International)
    License URL
    https://creativecommons.org/licenses/by/4.0/
    Data URL
    https://zenodo.org/records/8284123
    Citation
    Bachas, P., Gadenne, L., and Jensen, A. (2024). Informality, Consumption Taxes, and Redistribution [Dataset]. Review of Economic Studies. https://doi.org/10.1093/restud/rdad095. Accessed November 2024.
    Country List for Loop
    Name
    Country List for Loop
    Note
    Source: Authors' compilation. Includes the name of the countries in the microsimulations along with the names of all relevant files required. Access date: July 2025. File location: "Reproducibility_microsimulations\data\country_list_for_loop.xlsx".
    Access policy
    Data is publicly available and included in the reproducibility package.
    IMF World Revenue Longitudinal Database (WoRLD) – Tax Collection
    Name
    IMF World Revenue Longitudinal Database (WoRLD) – Tax Collection
    Note
    Source: International Monetary Fund, World Revenue Longitudinal Database. Access date: December 2025. File location: "Reproducibility_microsimulations\data\world-imf2024-v1.dta".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    License URL
    https://www.imf.org/en/about/copyright-and-terms
    Data URL
    https://www.imf.org/en/topics/fiscal-policies/world-revenue-longitudinal-database
    Citation
    International Monetary Fund. (2024). World Revenue Longitudinal Database (WoRLD) [Dataset]. https://www.imf.org/en/topics/fiscal-policies/world-revenue-longitudinal-database. Accessed December 2025.
    Classification of Individual Consumption According to Purpose (COICOP)
    Name
    Classification of Individual Consumption According to Purpose (COICOP)
    Note
    Source: United Nations Statistics Division. Access date: June 2023. File location: "Reproducibility_microsimulations\data\Surveys\raw\additional".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    License URL
    un.org/en/aboutun/terms/
    Data URL
    https://unstats.un.org/unsd/classifications/coicop
    Citation
    United Nations Statistics Division. (2023). Classification of Individual Consumption According to Purpose (COICOP) [Dataset]. https://unstats.un.org/unsd/classifications/coicop. Accessed June 2023.
    Final Consumption Expenditure (Households and NPISH - Non-Profit Institutions Serving Households)
    Name
    Final Consumption Expenditure (Households and NPISH - Non-Profit Institutions Serving Households)
    Note
    Source: OECD National Accounts Statistics. Access date: February 2026. File location: "Reproducibility_microsimulations\data". File names: OECD.SDD.NAD,DSD_NAMAIN10@DF_TABLE1_EXPENDITURE,2.0,filtered,2026-02-19 18-17-16.xlsx; and OECD.SDD.NAD,DSD_NAMAIN10@DF_TABLE1_EXPENDITURE,2.0,filtered,2026-02-19 18-27-01.xlsx.
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    License URL
    https://www.oecd.org/en/about/terms-conditions.html
    Data URL
    https://data-explorer.oecd.org/vis?lc=en&df[ds]=dsDisseminateFinalDMZ&df[id]=DSD_NAMAIN10%40DF_TABLE1_EXPENDITURE&df[ag]=OECD.SDD.NAD&df[vs]=2.0&dq=A.AUS.......XDC.V..&lom=LASTNPERIODS&lo=5&to[TIME_PERIOD]=false
    Citation
    OECD (2026). Annual GDP and Components – Expenditure Approach [Dataset]. OECD National Accounts Statistics. https://data-explorer.oecd.org/vis?df[ds]=dsDisseminateFinalDMZ&df[id]=DSD_NAMAIN10%40DF_TABLE1_EXPENDITURE&df[ag]=OECD.SDD.NAD&df[vs]=2.0. Accessed February 2026.
    World Inequality Database – Pre-tax Income Distribution
    Name
    World Inequality Database – Pre-tax Income Distribution
    Note
    Source: World Inequality Database (WID). Access date: February 2026. File location: "Reproducibility_microsimulations\data\WID_Data_27022026-175951.xlsx".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Data URL
    https://wid.world/data/
    Citation
    World Inequality Database. (2026). Pre-tax Income Distribution [Dataset]. https://wid.world/data/. Accessed February 2026.
    Coefficients from Cross-Country Regressions on Informality Consumption Shares
    Name
    Coefficients from Cross-Country Regressions on Informality Consumption Shares
    Note
    Source: Compiled by the authors based on Appendix Table E4 from Bachas, P., Gadenne, L., and Jensen, A. (2024). Access date: March 2026. File location: "Reproducibility_microsimulations\data\Bachas_coef_allcountries.dta".
    Access policy
    Data is publicly available and included in the reproducibility package.
    License
    Custom license
    Data URL
    https://doi.org/10.1093/restud/rdad095
    Citation
    Bachas, P., Gadenne, L., and Jensen, A. (2024). Informality, Consumption Taxes, and Redistribution. The Review of Economic Studies, 91(5), 2604–2634. https://doi.org/10.1093/restud/rdad095.
    Horizontal Equity Multi-Country Online Survey Experiment
    Name
    Horizontal Equity Multi-Country Online Survey Experiment
    Note
    Online experiment with approximately 15,000 respondents in Colombia, India, Indonesia, Nigeria, and the Philippines. File location: "Reproducibility_experiments\online survey\data\raw".
    Access policy
    Data is currently under embargo and will be made available through the World Bank Microdata Library.
    Horizontal Equity Pakistan In-Person Survey Experiment
    Name
    Horizontal Equity Pakistan In-Person Survey Experiment
    Note
    In-person Survey with 2,609 individuals in Lahore, Pakistan between May and July 2024. File location: "Reproducibility_experiments\in-person survey\data\raw".
    Access policy
    Data is currently under embargo and will be made available through the World Bank Microdata Library.
    World Bank – Income Level Classification
    Name
    World Bank – Income Level Classification
    Note
    Source: Compiled by the authors based on Bachas, P., Gadenne, L., and Jensen, A. (2024). Access date: January 2026. File location: "Reproducibility_microsimulations\data\OGHIST_2025_10_07.xlsx".
    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://creativecommons.org/licenses/by/4.0/
    Data URL
    https://datahelpdesk.worldbank.org/knowledgebase/articles/906519-world-bank-country-and-lending-groups
    Citation
    World Bank. (2025). World Bank Country and Lending Groups – Historical Classification [Dataset].
    Non-Profit Institutions Serving Households (NPISH) Final Consumption Expenditure
    Name
    Non-Profit Institutions Serving Households (NPISH) Final Consumption Expenditure
    Note
    Source: DECRG Data Team, World Bank. Access date: February 2026. File location: "Reproducibility_microsimulations\data\HH and NPISHs FCE - From 2000.xlsx".
    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. Please contact: data@worldbank.org
    License
    Custom license
    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
    Horizontal Equity Of Taxation: Citizen Beliefs And Policy Preferences
    Type
    Working Paper
    Title
    Horizontal Equity Of Taxation: Citizen Beliefs And Policy Preferences
    Description
    Policy Research Working Papers (PRWP)
    Authors
    Author Affiliation Email
    Mahvish Shaukat World Bank mshaukat@worldbank.org
    Pierre Bachas World Bank pbachas@worldbank.org
    Anders Jensen Harvard and NBER anders_jensen@hks.harvard.edu
    Christopher Hoy World Bank and University of Melbourne choy@worldbank.org
    Date of production

    2026-05-13

    Scope and coverage

    Geographic locations
    Location Code
    World WLD
    Keywords
    Horizontal Inequity Vertical Equity Personal Income Tax Citizen Beliefs
    Topics
    ID Topic Parent topic ID Vocabulary Vocabulary URI
    D63 Equity, Justice, Inequality, and Other Normative Criteria and Measurement D6 Journal of Economic Literature (JEL)
    D72 Political Processes: Rent-Seeking, Lobbying, Elections, Legislatures, and Voting Behavior D7 Journal of Economic Literature (JEL)
    H22 Incidence H2 Journal of Economic Literature (JEL)
    H24 Personal Income and Other Nonbusiness Taxes and Subsidies H2 Journal of Economic Literature (JEL)
    H26 Tax Evasion and Avoidance H2 Journal of Economic Literature (JEL)
    C93 Field Experiments C9 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
    Mahvish Shaukat World Bank mshaukat@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

    2026-05-13

    Document version

    1

    Back to Catalog
    The World Bank Working for a World Free of Poverty
    • IBRD IDA IFC MIGA ICSID

    © The World Bank Group, All Rights Reserved.