Determinants of Wage Structure and Returns to Education in a Developing Country: Evidence from Linked Employer-Employee Manufacturing Survey Data of Ethiopia
JEL Classification: J16, J30, J31, J41, J71
Abstract
This study estimates the returns to education for workers in the Ethiopian manufacturing sector; and investigates additional determinants of hourly wages other than education. It starts the analysis using the standard framework of a Mincerian earnings function focusing on individual level characteristics as determinants of wages. The standard framework (basic Human Capital Model) is then augmented by controlling for firm level characteristics that are believed to play important roles in wage determination. In the basic model, the returns to one year of schooling for an Ethiopian manufacturing worker is around 10% for both men and women in the basic model - which is relatively small compared with estimates for other developing countries. When additional variables including firm level characteristics are controlled for, the returns to education go further down to about 8% for men and 9% for women. Conditional on schooling, the basic model estimates show that each additional year of labor market experience increases hourly wages by 6.0% for men and by 7.8% for women.
Keywords:
Wage determinants, Labor market, Returns to education, Economic models, EthiopiaAcknowledgments
The views and interpretations expressed in this paper are solely those of the author. They do not necessarily represent the views of the World Bank Group or its affiliated organizations. I would like to thank Taye Mengistae, Ishac Diwan, Ibrahim Elbadawi, an anonymous referee, and Keun Lee for comments and feedbacks.
References
- Berndt, E. R. The Practice of Econometrics: Classic and Contemporary Reading. MA: Addison-Wesley Publishing Company, Inc., 1991.
- Brunello, Giorgio, Comi, Simona, and Lucifora, Claudio. The Returns to Education in Italy: A New Look at the Evidence. Discussion Paper No. 130, IZA, Germany, March, 2000.
- Girma, Sourafel, and Kedir, Abbi. Is Education More Beneficial to the Less Able? Econometric Evidence from Ethiopia. Department of Economics, University of Leicester, United Kingdom, 2002.
- Halvorsen, R., and Palmquist, R. “The Interpretation of Dummy Variables in Semilogarithmic Equations.” American Economic Review 70 (No. 3 1980): 474-75.
- ILO. Ethiopia Country Profile. International Labour Office, Geneva, March, 2004.
- Krishnan, Pramila, Sellassie, Tesfaye G., and Dercon, Stefan. The Urban Labor Market during Structural Adjustment: Ethiopia, 1990-1997. The Centre for the Study of African Economies Working Paper Series No. 73, Berkeley Electronic Press, 1998.
- Mincer, J. Schooling, Experience, and Earnings. New York; NBER, 1974.
- Moock, P., Patrinos, H., and Venkataraman, M. Education and Earnings in a Transition Economy (Vietnam). The World Bank Policy Research Paper No. 1920, 1998. [https://doi.org/10.1596/1813-9450-1920]
- Psacharopoulos, George. Returns to Investment in Education: A Global Update. Policy Research Working Paper No. 1067, World Bank, 1993.
- Psacharopoulos, George. “Returns to Investment in Education: A Global Update.” World Development 22 (No. 9 1994): 1325-43. [https://doi.org/10.1016/0305-750X(94)90007-8]
- Psacharopoulos, G., and Tzannatos, Z. Women's Employment and Pay in Latin America. Regional Studies Report No. 10, Latin America and the Caribbean Technical Department, World Bank, 1991.
- Temesgen, Tilahun. Determinants of Wages and Returns to Education in the Nigerian Manufacturing Sector. Development Research Group, The World Bank, Washington, D.C., Processed, 2001.
- Temesgen, Tilahun. Decomposing Gender Wage Differences in Urban Ethiopia: Evidence Using Manufacturing Survey Data. Development Research Group, The World Bank, Washington, D.C., Processed, 2004.
- Temesgen, Tilahun, and Zeufack, Albert G. Gender Pay Inequality in African Manufacturing: Evidence from Linked Employer-Employee Establishment-Level Data. The World Bank, Washington, D.C., April, Processed, 2002.
- Van der Gaag, Jacques, and Vijverberg, Wim. “Wage Determinants in Cote d'Ivoire: Experience, Credentials, and Human Capital.” Economic Development and Cultural Change 37 (No. 2 1989): 371-81. [https://doi.org/10.1086/451727]
- Wahba, Jackline. Returns to Education and Regional Earnings Differentials in Egypt. Department of Economics, University of Southampton, United Kingdom, In D. Salehi-Isfahani (ed.), Labor and Human Capital in the Middle East. UK: Ithaca Press in Association with the Economic Research Forum, 2001.
- Willis, R. Wage Determinants: A Survey and Reinterpretation of Human Capital Earnings Function. In O. Ashenfelter and R. Layard (eds.), The Handbook of Labor Economics. Vol. 1, North-Holland: Elsevier Science, 1986. [https://doi.org/10.1016/S1573-4463(86)01013-1]
- World Bank. Repubic of Ghana: Basic Education Sector Improvement Program (Report No. 15770-GH). Washington, D.C.: World Bank, 1996.
- World Bank. World Development Indicators. Washington, D.C., 2002.