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

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Author Info

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

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    Bibliographic Info

    Article provided by Emerald Group Publishing in its journal Journal of Economic Studies.

    Volume (Year): 36 (2009)
    Issue (Month): 3 (September)
    Pages: 250-264

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    Handle: RePEc:eme:jespps:v:36:y:2009:i:3:p:250-264

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    Postal: Emerald Group Publishing, Howard House, Wagon Lane, Bingley, BD16 1WA, UK
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    Related research

    Keywords: Data anlaysis; Decision making; Kenya; Sugar;

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    Cited by:
    1. Asongu Simplice, 2013. "How has politico-economic liberalization affected financial allocation efficiency? Fresh African evidence," Working Papers 13/012, African Governance and Development Institute..
    2. Simplice Asongu, 2014. "Financial development dynamic thresholds of financial globalization: Evidence from Africa," Journal of Economic Studies, Emerald Group Publishing, vol. 41(2), pages 166 - 195, March.

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