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A Flexible Adjustment Model of Employment with Application to Zimbabwe's Manufacturing Industries

  • Heshmati, Almas

    ()

    (Dept. of Economic Statistics, Stockholm School of Economics)

  • Ncube, Mkhululi

    (Dept. of Economics, Göteborg University)

This paper presents a dynamic adjustment model of employment. The model is applied to a panel of ten Zimbabwean manufacturing industries observed over the period 1970-1993. The adjustment process is industry and time specific. The adjustment parameter is specified in terms of factors affecting the speed of adjustment. Industries are assumed to adjust their labour inputs towards a desired level of labour-use. A labour requirement function is specified in terms of observable variables and is used to model the desired level of labour-use. In evaluating alternative specifications, we used a flexible translog functional form where the labour requirement is a function of wages, output and capital stock. The empirical results show that in the long run, employment demand responds greatest to wages, followed by capital stock changes, and least by output. The sample mean annual speed of adjustment in employment is 33%. We further examined labour-use efficiency of different industries defined as the ratio of optimal to the observed level of employment. The rate of over-use of labour ranges across industries from 6.8% to 8.1% over the period of this study.

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Paper provided by Stockholm School of Economics in its series SSE/EFI Working Paper Series in Economics and Finance with number 278.

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Length: 20 pages
Date of creation: 06 Nov 1998
Date of revision: 15 Aug 2003
Publication status: Published as the book A Flexible Adjustment Model of Employment with Application to Zimbabwe's Manufacturing Industries, 2005, CEDAM.
Handle: RePEc:hhs:hastef:0278
Contact details of provider: Postal: The Economic Research Institute, Stockholm School of Economics, P.O. Box 6501, 113 83 Stockholm, Sweden
Phone: +46-(0)8-736 90 00
Fax: +46-(0)8-31 01 57
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  1. Pindyck, Robert S & Rotemberg, Julio J, 1983. " Dynamic Factor Demands under Rational Expectations," Scandinavian Journal of Economics, Wiley Blackwell, vol. 85(2), pages 223-38.
  2. Baltagi, Badi H. & Griffin, James M., 1997. "Pooled estimators vs. their heterogeneous counterparts in the context of dynamic demand for gasoline," Journal of Econometrics, Elsevier, vol. 77(2), pages 303-327, April.
  3. Peter R. Fallon & Robert E. B. Lucas, 1989. "Job Security Regulations and the Dynamic Demand for Industrial Labor in India and Zimbabwe," Boston University - Institute for Economic Development 2, Boston University, Institute for Economic Development.
  4. Judson, Ruth A. & Owen, Ann L., 1999. "Estimating dynamic panel data models: a guide for macroeconomists," Economics Letters, Elsevier, vol. 65(1), pages 9-15, October.
  5. Diewert, W E, 1974. "Functional Forms for Revenue and Factor Requirements Functions," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 15(1), pages 119-30, February.
  6. Kumbhakar, Subal C. & Heshmati, Almas & Hjalmarsson, Lennart, 2000. "How Fast Do Banks Adjust? A Dynamic Model of Labor-Use with an Application to Swedish Banks," SSE/EFI Working Paper Series in Economics and Finance 411, Stockholm School of Economics, revised Nov 2001.
  7. John B. Knight, 1997. "Labour market policies and outcomes in Zimbabwe," CSAE Working Paper Series 1997-01, Centre for the Study of African Economies, University of Oxford.
  8. Kumbhakar, Subal C. & Hjalmarsson, Lennart, 1998. "Relative performance of public and private ownership under yardstick competition: electricity retail distribution," European Economic Review, Elsevier, vol. 42(1), pages 97-122, January.
  9. Arellano, Manuel & Bond, Stephen, 1991. "Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations," Review of Economic Studies, Wiley Blackwell, vol. 58(2), pages 277-97, April.
  10. Kumbhakar, Subal C & Hjalmarsson, Lennart, 1995. "Labour-Use Efficiency in Swedish Social Insurance Offices," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 10(1), pages 33-47, Jan.-Marc.
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