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Wage and Productivity Premiums in Sub-Saharan Africa

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Johannes Van Biesebroeck

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Abstract

Using a matched employer-employee data set of manufacturing plants in three sub-Saharan countries, I compare the marginal productivity of different categories of workers with the wages they earn. A methodological contribution is to estimate the firm level production function jointly with the individual level wage equation using a feasible GLS estimator. The additional information of individual workers leads to more precise estimates, especially of the wage premiums, and to a more accurate test. The results indicate that equality holds strongly for the most developed country in the sample (Zimbabwe), but not at all for the least developed country (Tanzania). Moreover, the breakdown in correct remuneration in the two least developed countries follows a distinct pattern. On the one hand, wage premiums exceed productivity premiums for general human capital characteristics (experience and schooling). On the other hand, salaries hardly increase for more firm-specific human capital characteristics (tenure and training), even though these have a clear productivity effect.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 13306.

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Date of creation: Aug 2007
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Handle: RePEc:nbr:nberwo:13306

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Find related papers by JEL classification:
J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
O12 - Economic Development, Technological Change, and Growth - - Economic Development - - - Microeconomic Analyses of Economic Development

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Van Biesebroeck, Johannes, 2005. "Firm Size Matters: Growth and Productivity Growth in African Manufacturing," Economic Development and Cultural Change, University of Chicago Press, vol. 53(3), pages 545-83, April.
  2. Jones, Patricia, 2001. "Are educated workers really more productive?," Journal of Development Economics, Elsevier, vol. 64(1), pages 57-79, February. [Downloadable!] (restricted)
  3. Knight, J B & Sabot, R H, 1987. "Educational Policy and Labour Productivity: An Output Accounting Exercise," Economic Journal, Royal Economic Society, vol. 97(385), pages 199-214, March. [Downloadable!] (restricted)
  4. Bigsten, Arne, et al, 2000. "Rates of Return on Physical and Human Capital in Africa's Manufacturing Sector," Economic Development and Cultural Change, University of Chicago Press, vol. 48(4), pages 801-27, July.
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  5. Marcela Eslava & John Haltiwanger & Adriana Kugler & Maurice Kugler, 2004. "The Effect of Structural Reforms on Productivity and Profitability Enhancing Reallocation: Evidence from Colombia," NBER Working Papers 10367, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  6. Johannes Van Biesebroeck, 2003. "Wages Equal Productivity: Fact or Fiction?," NBER Working Papers 10174, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  7. Judith K. Hellerstein & David Neumark, 2004. "Production Function and Wage Equation Estimation with Heterogeneous Labor: Evidence from a New Matched Employer-Employee Data Set," NBER Working Papers 10325, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  8. Naércio Aquino Menezes Filho & Marc Andreas Muendler, 2007. "Labor Reallocation in Response to Trade Reform," CESifo Working Paper Series CESifo Working Paper No. , CESifo GmbH. [Downloadable!]
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  9. Fafchamps, Marcel, 1997. "Introduction: Markets in sub-saharan Africa," World Development, Elsevier, vol. 25(5), pages 733-734, May. [Downloadable!] (restricted)
  10. Lorraine Dearden & Howard Reed & John Van Reenen, 2005. "The Impact of Training on Productivity and Wages: Evidence from British Panel Data," CEP Discussion Papers dp0674, Centre for Economic Performance, LSE. [Downloadable!]
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  11. Torbjørn Hægeland and Tor Jakob Klette, 1997. "Do Higher Wages Reflect Higher Productivity? Education, Gender and Experience Premiums in a Matched Plant-Worker Data Set," Discussion Papers 208, Research Department of Statistics Norway.
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  1. Johannes Van Biesebroeck, 2007. "Wages Equal Productivity. Fact or Fiction?," Working Papers tecipa-294, University of Toronto, Department of Economics. [Downloadable!]
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