IDEAS home Printed from https://ideas.repec.org/a/hit/hitjec/v66y2025i2p132-160.html

Behind the Elusive Employment Effect of the Minimum Wage : A Regression Discontinuity Approach

Author

Listed:
  • OH, Taehee
  • LEE, Jangyoun

Abstract

In Korea, workers must receive a full dayʼs pay when they work over 15 hours a week. This study leverages this regulation to estimate the impact of minimum wage increases on labor market outcomes, exploiting a sharp discontinuity in the minimum wage rule at 15 hours worked (i.e., regression discontinuity designs) based on a longitudinal panel dataset. The estimation results reveal that, in response to the hourly wage jumping by 20 percent at the discontinuity, Korean employers seek to reduce their labor costs by cutting employeesʼ working hours to avoid paying statutory holiday pay instead of laying them off.

Suggested Citation

  • OH, Taehee & LEE, Jangyoun, 2025. "Behind the Elusive Employment Effect of the Minimum Wage : A Regression Discontinuity Approach," Hitotsubashi Journal of Economics, Hitotsubashi University, vol. 66(2), pages 132-160, December.
  • Handle: RePEc:hit:hitjec:v:66:y:2025:i:2:p:132-160
    DOI: 10.15057/hje.2025007
    as

    Download full text from publisher

    File URL: https://hit-u.repo.nii.ac.jp/record/2061564/files/HJeco0660201320.pdf
    Download Restriction: no

    File URL: https://libkey.io/10.15057/hje.2025007?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Janet Currie & Bruce C. Fallick, 1996. "The Minimum Wage and the Employment of Youth Evidence from the NLSY," Journal of Human Resources, University of Wisconsin Press, vol. 31(2), pages 404-428.
    2. repec:eee:labchp:v:3:y:1999:i:pb:p:2101-2163 is not listed on IDEAS
    3. Kaas, Leo & Madden, Paul, 2008. "Holdup in oligopsonistic labour markets - a new role for the minimum wage," Labour Economics, Elsevier, vol. 15(3), pages 334-349, June.
    4. Mark B. Stewart & Joanna K. Swaffield, 2008. "The Other Margin: Do Minimum Wages Cause Working Hours Adjustments for Low‐Wage Workers?," Economica, London School of Economics and Political Science, vol. 75(297), pages 148-167, February.
    5. Martha J. Bailey & John DiNardo & Bryan A. Stuart, 2021. "The Economic Impact of a High National Minimum Wage: Evidence from the 1966 Fair Labor Standards Act," Journal of Labor Economics, University of Chicago Press, vol. 39(S2), pages 329-367.
    6. Kenneth A. Couch & David C. Wittenburg, 2001. "The Response of Hours of Work to Increases in the Minimum Wage," Southern Economic Journal, Southern Economic Association, vol. 68(1), pages 171-177, July.
    7. McCrary, Justin, 2008. "Manipulation of the running variable in the regression discontinuity design: A density test," Journal of Econometrics, Elsevier, vol. 142(2), pages 698-714, February.
    8. Kenneth A. Couch & David C. Wittenburg, 2001. "The Response of Hours of Work to Increases in the Minimum Wage," Southern Economic Journal, John Wiley & Sons, vol. 68(1), pages 171-177, July.
    9. Brown, Charles, 1999. "Minimum wages, employment, and the distribution of income," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 3, chapter 32, pages 2101-2163, Elsevier.
    10. Neumark, David & Munguía Corella, Luis Felipe, 2021. "Do minimum wages reduce employment in developing countries? A survey and exploration of conflicting evidence," World Development, Elsevier, vol. 137(C).
    11. Peter Harasztosi & Attila Lindner, 2019. "Who Pays for the Minimum Wage?," American Economic Review, American Economic Association, vol. 109(8), pages 2693-2727, August.
    12. Imbens, Guido W. & Lemieux, Thomas, 2008. "Regression discontinuity designs: A guide to practice," Journal of Econometrics, Elsevier, vol. 142(2), pages 615-635, February.
    13. Andrew Gelman & Guido Imbens, 2019. "Why High-Order Polynomials Should Not Be Used in Regression Discontinuity Designs," Journal of Business & Economic Statistics, Taylor & Francis Journals, vol. 37(3), pages 447-456, July.
    14. Hristos Doucouliagos & T. D. Stanley, 2009. "Publication Selection Bias in Minimum‐Wage Research? A Meta‐Regression Analysis," British Journal of Industrial Relations, London School of Economics, vol. 47(2), pages 406-428, June.
    15. Card, David & Krueger, Alan B, 1994. "Minimum Wages and Employment: A Case Study of the Fast-Food Industry in New Jersey and Pennsylvania," American Economic Review, American Economic Association, vol. 84(4), pages 772-793, September.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Arindrajit Dube & Attila Lindner, 2024. "Minimum Wages in the 21st Century," RFBerlin Discussion Paper Series 2425, ROCKWOOL Foundation Berlin (RFBerlin).
    2. David Neumark & Peter Shirley, 2022. "Myth or measurement: What does the new minimum wage research say about minimum wages and job loss in the United States?," Industrial Relations: A Journal of Economy and Society, Wiley Blackwell, vol. 61(4), pages 384-417, October.
    3. Dale Belman & Paul Wolfson & Kritkorn Nawakitphaitoon, 2015. "Who Is Affected by the Minimum Wage?," Industrial Relations: A Journal of Economy and Society, Wiley Blackwell, vol. 54(4), pages 582-621, October.
    4. Paul Redmond & Seamus McGuinness, 2025. "The impact of a minimum wage increase on hours worked: heterogeneous effects by gender and sector," Economica, London School of Economics and Political Science, vol. 92(365), pages 84-106, January.
    5. Arindrajit Dube & Ben Zipperer, 2024. "Own-Wage Elasticity: Quantifying the Impact of Minimum Wages on Employment," NBER Working Papers 32925, National Bureau of Economic Research, Inc.
    6. Abbate, Nicolás & Jiménez, Bruno, 2026. "Do minimum wage hikes lead to employment destruction? Evidence from a regression discontinuity design in Argentina," Journal of Development Economics, Elsevier, vol. 178(C).
    7. Redmond, Paul & McGuinness, Seamus, 2022. "Heterogeneous effects of a minimum wage increase on hours worked," Research Series, Economic and Social Research Institute (ESRI), number RS132.
    8. Mark B. Stewart & Joanna K. Swaffield, 2008. "The Other Margin: Do Minimum Wages Cause Working Hours Adjustments for Low‐Wage Workers?," Economica, London School of Economics and Political Science, vol. 75(297), pages 148-167, February.
    9. Mauricio Villamizar‐Villegas & Freddy A. Pinzon‐Puerto & Maria Alejandra Ruiz‐Sanchez, 2022. "A comprehensive history of regression discontinuity designs: An empirical survey of the last 60 years," Journal of Economic Surveys, Wiley Blackwell, vol. 36(4), pages 1130-1178, September.
    10. Pablo Blanchard & Paula Carrasco & Rodrigo Ceni & Cecilia Parada & Sofía Santín, 2021. "Distributive and displacement effects of a coordinated wage bargaining scheme," Documentos de Trabajo (working papers) 21-26, Instituto de Economía - IECON.
    11. Marlies Piek & Dieter von Fintel & Johann Kirsten, 2023. "The impact of agricultural minimum wages on worker flows in South Africa," South African Journal of Economics, Economic Society of South Africa, vol. 91(4), pages 446-465, December.
    12. Kim, Ji Hwan & Lee, Jungmin & Lee, Kyungho, 2023. "Minimum wage, social insurance mandate, and working hours," Journal of Public Economics, Elsevier, vol. 225(C).
    13. Nicolas Gonzalez-Pampillon & Javier Vazquez-Grenno, 2025. "Minimum wages and low wage workers: Compliance as non-employment margin," CEP Discussion Papers dp2096, Centre for Economic Performance, LSE.
    14. Nicolás González-Pampillón & Javier Vázquez-Grenno & Universitat de Barcelona & IEB, 2025. "Minimum wages and low wage workers: Compliance asnon-employment margin," Working Papers 2025/06, Institut d'Economia de Barcelona (IEB).
    15. Koch, Andreas & Kirchmann, Andrea & Reiner, Marcel & Scheu, Tobias & Zühlke, Anne & Bonin, Holger, 2020. "Verhaltensmuster von Betrieben und Beschäftigten im Kontext des gesetzlichen Mindestlohns," IZA Research Reports 97, Institute of Labor Economics (IZA).
    16. Wong, Sara A., 2019. "Minimum wage impacts on wages and hours worked of low-income workers in Ecuador," World Development, Elsevier, vol. 116(C), pages 77-99.
    17. Fone, Zachary S. & Sabia, Joseph J. & Cesur, Resul, 2023. "The unintended effects of minimum wage increases on crime," Journal of Public Economics, Elsevier, vol. 219(C).
    18. McGuinness, Seamus & Redmond, Paul, 2018. "Estimating the effect of an increase in the minimum wage on hours worked and employment in Ireland," Research Series, Economic and Social Research Institute (ESRI), number BKMNEXT354.
    19. Peng-Ju Su, Alice, 2020. "Information advantage and minimum wage," Information Economics and Policy, Elsevier, vol. 50(C).
    20. David Neumark & William Wascher, 2006. "Minimum Wages and Employment: A Review of Evidence from the New Minimum Wage Research," Working Papers 060708, University of California-Irvine, Department of Economics, revised Jan 2007.

    More about this item

    Keywords

    ;
    ;
    ;

    JEL classification:

    • J21 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Force and Employment, Size, and Structure
    • J38 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Public Policy
    • J42 - Labor and Demographic Economics - - Particular Labor Markets - - - Monopsony; Segmented Labor Markets

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:hit:hitjec:v:66:y:2025:i:2:p:132-160. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Digital Resources Section, Hitotsubashi University Library (email available below). General contact details of provider: https://edirc.repec.org/data/fehitjp.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.