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Impact of liberalization on efficiency and productivity of sugar industry in Kenya

Author

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  • M.R. Mulwa
  • A. Emrouznejad
  • F.M. Murithi

Abstract

Purpose - The data used in this study is for the period 1980‐2000. Almost midway through this period (in 1992), the Kenyan government liberalized the sugar industry and the role of the market increased, while the government's role with respect to control of prices, imports and other aspects in the sector declined. This exposed the local sugar manufacturers to external competition from other sugar producers, especially from the COMESA region. This study aims to find whether there were any changes in efficiency of production between the two periods (pre and post‐liberalization). Design/methodology/approach - The study utilized two methodologies to efficiency estimation: data envelopment analysis (DEA) and the stochastic frontier. DEA uses mathematical programming techniques and does not impose any functional form on the data. However, it attributes all deviation from the mean function to inefficiencies. The stochastic frontier utilizes econometric techniques. Findings - The test for structural differences in the two periods does not show any statistically significant differences between the two periods. However, both methodologies show a decline in efficiency levels from 1992, with the lowest period experienced in 1998. From then on, efficiency levels began to increase. Originality/value - To the best of the authors' knowledge, this is the first paper to use both methodologies in the sugar industry in Kenya. It is shown that in industries where the noise (error) term is minimal (such as manufacturing), the DEA and stochastic frontier give similar results.

Suggested Citation

  • M.R. Mulwa & A. Emrouznejad & F.M. Murithi, 2009. "Impact of liberalization on efficiency and productivity of sugar industry in Kenya," Journal of Economic Studies, Emerald Group Publishing Limited, vol. 36(3), pages 250-264, July.
    • Handle: RePEc:eme:jespps:v:36:y:2009:i:3:p:250-264
    DOI: 10.1108/01443580910983843
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    Citations

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    Cited by:

    1. Kodila-Tedika, Oasis & Asongu, Simplice A. & Cinyabuguma, Matthias & Tchamyou, Vanessa S., 2017. "Financial development and prehistoric geographical isolation: global evidence," Financial History Review, Cambridge University Press, vol. 24(3), pages 283-306, December.
    2. Simplice A. Asongu & Joseph Nnanna & Vanessa S. Tchamyou, 2020. "The comparative African regional economics of globalization in financial allocation efficiency: the pre-crisis era revisited," Financial Innovation, Springer;Southwestern University of Finance and Economics, vol. 6(1), pages 1-41, December.
    3. Asongu, Simplice A., 2017. "Assessing marginal, threshold, and net effects of financial globalisation on financial development in Africa," Journal of Multinational Financial Management, Elsevier, vol. 40(C), pages 103-114.
    4. Asongu, Simplice A. & Koomson, Isaac & Tchamyou, Vanessa S., 2017. "Financial globalisation uncertainty/instability is good for financial development," Research in International Business and Finance, Elsevier, vol. 41(C), pages 280-291.
    5. Khoshroo, Alireza & Mulwa, Richard & Emrouznejad, Ali & Arabi, Behrouz, 2013. "A non-parametric Data Envelopment Analysis approach for improving energy efficiency of grape production," Energy, Elsevier, vol. 63(C), pages 189-194.
    6. Asongu Simplice, 2012. "Financial development dynamic thresholds of financial globalization: evidence from Africa," Working Papers of the African Governance and Development Institute. 12/020, African Governance and Development Institute..
    7. Simplice Asongu & Lieven De Moor, 2015. "Financial globalisation and financial development in Africa: assessing marginal, threshold and net effects," Working Papers of the African Governance and Development Institute. 15/040, African Governance and Development Institute..
    8. Simplice A Asongu, 2013. "How has politico-economic liberalization affected financial allocation efficiency? Fresh African evidence," Economics Bulletin, AccessEcon, vol. 33(1), pages 663-676.
    9. Simplice A Asongu & Lieven De Moor, 2017. "Financial Globalisation Dynamic Thresholds for Financial Development: Evidence from Africa," The European Journal of Development Research, Palgrave Macmillan;European Association of Development Research and Training Institutes (EADI), vol. 29(1), pages 192-212, January.
    10. Simplice Asongu & Lieven De Moor & Vanessa Tchamyou, 2015. "Pre- and post-crisis dynamics of financial globalisation for financial development in Africa," Working Papers of the African Governance and Development Institute. 15/045, African Governance and Development Institute..
    11. Simplice Asongu & Vanessa Tchamyou, 2015. "The Comparative African Regional Economics of Globalization in Financial Allocation Efficiency," Working Papers of the African Governance and Development Institute. 15/053, African Governance and Development Institute..

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