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Minimum Wages, Earnings, and Worker–Firm Sorting

Author

Listed:
  • Suphanit Piyapromdee
  • Tanisa Tawichsri
  • Nada Wasi

Abstract

This paper studies Thailand’s 2012–2013 nationwide minimum-wage reform, which raised wage floors by over 40 percent. Using matched employer–employee data, we study its effects on earnings, employment dynamics, and worker–firm sorting. We estimate a discrete type model that jointly captures heterogeneity in wages and mobility across workers and firms. Earnings rise sharply at the bottom with spillovers well above the new minimum, while employment effects are modest and concentrated among the long-term non-employed. Simulations imply sizable gains in discounted lifetime earnings, driven mainly by higher wages but amplified by mobility changes for high-turnover workers. The reform also alters career wage profiles: entry wages increase for low- and mid-wage workers, but tenure-based wage growth flattens most for mid-wage workers, generating an intertemporal trade-off between higher starting pay and slower subsequent progression. Finally, assortative matching weakens as lower-type workers move up the firm wage ladder, yet revealed-preference measures show that wage-based upgrading does not always translate into higher-valued jobs.

Suggested Citation

  • Suphanit Piyapromdee & Tanisa Tawichsri & Nada Wasi, 2024. "Minimum Wages, Earnings, and Worker–Firm Sorting," PIER Discussion Papers 222, Puey Ungphakorn Institute for Economic Research, revised Feb 2026.
    • Handle: RePEc:pui:dpaper:222
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    References listed on IDEAS

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    1. Samutpradit, Saisawat, 2024. "Employment effects of minimum wages in a dual economy: Evidence from Thailand," Journal of Development Economics, Elsevier, vol. 168(C).
    2. David S. Lee, 1999. "Wage Inequality in the United States During the 1980s: Rising Dispersion or Falling Minimum Wage?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 114(3), pages 977-1023.
    3. R. Kaj Gittings & Ian M. Schmutte, 2016. "Getting Handcuffs on an Octopus," ILR Review, Cornell University, ILR School, vol. 69(5), pages 1133-1170, October.
    4. Christopher J. Flinn, 2006. "Minimum Wage Effects on Labor Market Outcomes under Search, Matching, and Endogenous Contact Rates," Econometrica, Econometric Society, vol. 74(4), pages 1013-1062, July.
    Full references (including those not matched with items on IDEAS)

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    Keywords

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    JEL classification:

    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
    • J38 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Public Policy
    • J60 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - General
    • J64 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Unemployment: Models, Duration, Incidence, and Job Search

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