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Education Premiums in Cambodia: Dummy Variables Revisited and Recent Data


  • John Humphreys


The best peer-reviewed, published estimate of Cambodia’s education premiums currently comes from a paper by Ashish Lall and Chris Sakellariou (2010), but their paper includes an error in the interpretation of dummy variable coefficients. Here I offer corrected estimates of the annualized education premiums for each level of education in Cambodia, and I also offer an extension by applying Lall and Sakellariou’s model to more recent data. The result is that education premiums for Cambodia are generally higher than as published by Lall and Sakellariou, and substantially higher in the case of university education.

Suggested Citation

  • John Humphreys, 2015. "Education Premiums in Cambodia: Dummy Variables Revisited and Recent Data," Econ Journal Watch, Econ Journal Watch, vol. 12(3), pages 339–345-3, September.
  • Handle: RePEc:ejw:journl:v:12:y:2015:i:3:p:339-345

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    References listed on IDEAS

    1. Lucas, Robert E B, 1977. "Hedonic Wage Equations and Psychic Wages in the Returns to Schooling," American Economic Review, American Economic Association, vol. 67(4), pages 549-558, September.
    2. Halvorsen, Robert & Palmquist, Raymond, 1980. "The Interpretation of Dummy Variables in Semilogarithmic Equations," American Economic Review, American Economic Association, vol. 70(3), pages 474-475, June.
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    More about this item


    Cambodian Socio-Economic Survey; return on education; semi-logarithmic regression;

    JEL classification:

    • C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials


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