Earnings functions, labour market discrimination and quality of education in South Africa
Education is a key determinant of earnings, as several South African studies have confirmed. Years of schooling completed, however, provides an imperfect approximation of the effective level of education achieved, mainly due to variations in the quality of education received. This study addresses this issue by, for the first time in South Africa, incorporating quality of education in the modelling of earnings. Differences in quality of education are viewed as a form of pre-labour market discrimination. By decomposing the wage gap before and after controlling for educational quality, more accurate estimates of the true levels of labour market discrimination are obtained. The main hypothesis tested is that controlling for quality will reduce the component of the wage gap ascribed to labour market discrimination. The results show a systematic decrease in the labour market discrimination component with increased adjustments for quality of education. Almost half of the previous labour market discrimination can be explained by differences in quality, yet the proportion of racial wage differentials ascribed to labour market discrimination is still found to be significant. The clear implication is that current estimates of labour market discrimination are exaggerated and a more careful analysis of earnings is required to re-assess the levels of discrimination in the South African labour market.
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- Johnson, George E & Stafford, Frank P, 1996. "On the Rate of Return to Schooling Quality," The Review of Economics and Statistics, MIT Press, vol. 78(4), pages 686-691, November.
- Lee, Jong-Wha & Barro, Robert J, 2001.
"Schooling Quality in a Cross-Section of Countries,"
London School of Economics and Political Science, vol. 68(272), pages 465-488, November.
- Jong-Wha Lee & Robert J. Barro, 1997. "Schooling Quality in a Cross Section of Countries," NBER Working Papers 6198, National Bureau of Economic Research, Inc.
- Lee, J.-W. & Barro, R.J., 1998. "Schooling Quality in a Cross Section of Countries," Papers 659, Harvard - Institute for International Development.
- Murray Leibbrandt & Haroon Bhorat, 1999. "Modelling Vulnerability and Low Earnings in the South African Labour Market," Working Papers 99032, University of Cape Town, Development Policy Research Unit.
- Servaas van der Berg & Louise Wood & Neil le Roux, 2002. "Differentiation in black education," Development Southern Africa, Taylor & Francis Journals, vol. 19(2), pages 289-306.
- Heckman, James, 2013. "Sample selection bias as a specification error," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 31(3), pages 129-137.
- Heckman, James J, 1979. "Sample Selection Bias as a Specification Error," Econometrica, Econometric Society, vol. 47(1), pages 153-161, January.
- Oaxaca, Ronald, 1973. "Male-Female Wage Differentials in Urban Labor Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 14(3), pages 693-709, October.
- Julian F. Hofmeyr & Robert E. B. Lucas, 1998. "The Rise in Union Wage Premia in South Africa," Boston University - Institute for Economic Development 83, Boston University, Institute for Economic Development.
- Murray Leibbrandt & Haroon Bhorat, 1999. "Correlates of Vulnerability in the South African Labour Market," Working Papers 99027, University of Cape Town, Development Policy Research Unit.
- Mwabu, Germano & Schultz, T Paul, 1996. "Education Returns across Quantiles of the Wage Function: Alternative Explanations for Returns to Education by Race in South Africa," American Economic Review, American Economic Association, vol. 86(2), pages 335-339, May.
- Schultz, T.P. & Mwabu, G., 1995. "Education Returns Across Quantiles of the Wage Function: Alternative Explanation for Returns to Education by Race in South Africa," Papers 744, Yale - Economic Growth Center.
- Oaxaca, Ronald L. & Ransom, Michael R., 1994. "On discrimination and the decomposition of wage differentials," Journal of Econometrics, Elsevier, vol. 61(1), pages 5-21, March.
- Behrman, Jere R & Birdsall, Nancy, 1983. "The Quality of Schooling: Quantity Alone is Misleading," American Economic Review, American Economic Association, vol. 73(5), pages 928-946, December.
- Heckman, James & Layne-Farrar, Anne & Todd, Petra, 1996. "Human Capital Pricing Equations with an Application to Estimating the Effect of Schooling Quality on Earnings," The Review of Economics and Statistics, MIT Press, vol. 78(4), pages 562-610, November. Full references (including those not matched with items on IDEAS)