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PRWP

Reproducibility package for The Lasting Effects Of Working While In School: A Long-Term Follow-Up

2025
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Reference ID
RR_URY_2025_400
DOI
https://doi.org/10.60572/h822-wd23
Author(s)
Diego Javier Ubfal, Mery Ferrando, Noemi Katzkowicz, Thomas Le Barbanchon
Collections
World Bank Policy Research Working Papers
Metadata
JSON
Created on
Jul 31, 2025
Last modified
Jul 31, 2025
  • Overview
  • Reproducibility Package
  • Description
  • Scope and coverage
  • Disclaimer
  • Access and rights
  • Contacts
  • Information on metadata
  • Citation

    • Overview

    Abstract

    This paper provides the first experimental evidence on the long-term effects of work-study programs, leveraging a randomized lottery design from a national program in Uruguay. Participation leads to a persistent 11 percent increase in formal labor earnings, observable seven years after the program. Effects are stronger for youth who participate during pivotal educational transitions and are larger for vulnerable youth and men, while remaining positive for women and non-vulnerable youth. The program is highly cost-effective, with average impacts exceeding those of job training programs and comparable to early childhood investments.

    Reproducibility Package

    Scripts
    Get Reproducibility Package
    Title
    Reproducibility package for The Lasting Effects Of Working While In School: A Long-Term Follow-Up
    Date
    2025-07
    Dependencies
    Stata dependencies are listed in the ado folder.
    Instructions
    See README in reproducibility package.
    Notes
    Computational reproducibility verified by Development Impact (DIME) Analytics team, World Bank.
    Source code repository
    Repository name URI
    Reproducible Research Repository (World Bank) https://reproducibility.worldbank.org
    Software
    Name
    Stata
    Version
    18 MP

    Reproducibility

    Technology environment

    Cleaning: 55 minutes
    Analysis: 42 minutes
    Technology requirements

    Paper exhibits were reproduced on a computer with the following specifications:
    • OS: Windows 11 Enterprise, version 21H2
    • Memory available: 32 GB
    • Software version: Stata 18.0
    Reproduction instructions

    The package's replication was done through a virtual verification due to data access restrictions.
    To reproduce the findings in this paper, a replicator must:

    1. Secure Access to Confidential Data: The data used in this paper contains personally identifiable information (PII) and is not publicly available. More details are included in the README file.
    2. Obtain Cleaning Codes: The cleaning scripts contain personally identifiable information (PII) and are therefore not included in the replication package. If data access is secured, you may contact the author at dubfal@worldbank.org to request these scripts.
    3. Adjust File Paths and Run Code: Update the paths in main_cleaning.do and main_analysis.do to match your local environment. Run both scripts sequentially to reproduce the analysis.

    Because access to the confidential data is unlikely for most users, this package includes the outputs generated by the author, verified by the replicators.
    These files can be used to review and validate the results presented in the paper.

    Data

    Datasets
    Name
    Administrative Data on "Yo Estudio y Trabajo" (YET) Program
    Note
    Source: Uruguayan Ministry of Labor and Social Security (MTSS). Location: data/in/AEJapplied/data_newrequestmay3.dta (Accessed date: May 2023); data/in/AEJapplied/data_uniqueapp.dta (Accessed date: July 2021); data/in/AEJapplied/data_uniqueapp_alled_newreq2023.dta (Accessed date: April 2023); data/in/AEJapplied/earnings_panel_alled.dta (Accessed date: July 2021). The original data was provided by the Uruguayan Ministry of Labor and Social Security (MTSS) to the authors for the AEJ Applied Economics publication (linked below). The authors later obtained special authorization from MTSS to reuse the data for this Working Paper. Description: This administrative dataset contains information on YET program applications, including applicants’ social security earnings and educational records. The data contains personally identifiable information (PII) and is therefore strictly confidential.
    Access policy
    Restricted and not included in the reproducibility package
    Data URL
    https://doi.org/10.1257/app.20210041
    Name
    Social Security Bank Data
    Note
    Source: Ministry of Labor and Social Security (MTSS) and Social Security Bank (BPS). Obtained under a confidential agreement with the Ministry of Labor and Social Security, the Institute of Economics, University of the Republic (UDELAR). Data is restricted as it contains personally identifiable information. Location: data/in/MTSSiecon/datos_dec2023.dta. Date Accessed: December 2023
    Access policy
    Restricted and not included in the reproducibility package
    Name
    University Graduation Dataset
    Note
    Source: University of the Republic Uruguay (UDELAR). University graduation data obtained under a confidential agreement with the UDELAR. Data is restricted as it contains personally identifiable information. Location: data/in/UDELAR/egresos_2006_2023.csv. Date Accessed: October 2024.
    Access policy
    Restricted and not included in the reproducibility package
    Name
    Uruguay Household Survey 2022 (ECH)
    Note
    Source: National Institute of Statistics of Uruguay (2022). Location: data/in/ECH/p22.dta. Data was transformed into Stata and renamed “p22”. Date Accessed: April 2024.
    Access policy
    Data is publicly available, but does not allow redistribution.
    License URL
    https://www4.ine.gub.uy/Anda5/index.php/catalog/730/get-microdata
    Data URL
    https://www4.ine.gub.uy/Anda5/index.php/catalog/730/get-microdata
    Data statement

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

    Description

    Output
    Type
    Working Paper
    Title
    The Lasting Effects Of Working While In School: A Long-Term Follow-Up
    Authors
    Diego Javier Ubfal, Mery Ferrando, Noemi Katzkowicz, Thomas Le Barbanchon
    Description
    Policy Research Working Papers (PRWP)
    Authors
    Author Affiliation Email
    Diego Javier Ubfal World Bank dubfal@worldbank.org
    Mery Ferrando Tilburg University m.ferrando@tilburguniversity.edu
    Noemi Katzkowicz Universidad de la República noma.katzkowicz@fcea.edu.uy
    Thomas Le Barbanchon Bocconi University thomas.lebarbanchon@unibocconi.it
    Date of production

    2025-07-30

    Scope and coverage

    Geographic locations
    Location Code
    Uruguay URY
    Keywords
    Work-Study Program Youth Employment School-To-Work Transition Long-Term Effects
    Topics
    ID Topic Parent topic ID Vocabulary Vocabulary URI
    I21 Analysis of Education I2 Journal of Economic Literature (JEL)
    I26 Returns to Education I2 Journal of Economic Literature (JEL)
    J13 Fertility • Family Planning • Child Care • Children • Youth J1 Journal of Economic Literature (JEL)
    J24 Human Capital • Skills • Occupational Choice • Labor Productivity J2 Journal of Economic Literature (JEL)
    J31 Wage Level and Structure • Wage Differentials J3 Journal of Economic Literature (JEL)
    O15 Human Resources • Human Development • Income Distribution • Migration O1 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
    Modified BSD3 https://opensource.org/license/bsd-3-clause/

    Contacts

    Contacts
    Name Affiliation Email
    Diego Javier Ubfal World Bank dubfal@worldbank.org
    Reproducibility WBG World Bank reproducibility@worldbank.org

    Information on metadata

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

    2025-07-30
    Document version

    1

    Citation

    Citation
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