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Productivity growth and biased technological change in hydroelectric dams

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  • Briec, Walter
  • Peypoch, Nicolas
  • Ratsimbanierana, Hermann
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    Abstract

    This paper analyses productivity growth and the nature of technical change in a sample of Portuguese hydroelectric generating plants over the period 2001 to 2008. In a first step, we employ the Luenberger productivity indicator to estimate and decompose productivity change. A Malmquist productivity index is also used for a comparative purpose. The results paint a picture of mixed productivity performance in the Portuguese energy sector. The first decomposition underlines that, in average, the productivity variation is explained by the technological change. Then, in a second step, we analyse the nature of this technical change by using the recent concept of parallel neutrality (Briec et al., 2006). We observe a global shift in the best practice frontier as well as in the evidence of input bias in technical change.

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    Bibliographic Info

    Article provided by Elsevier in its journal Energy Economics.

    Volume (Year): 33 (2011)
    Issue (Month): 5 (September)
    Pages: 853-858

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    Handle: RePEc:eee:eneeco:v:33:y:2011:i:5:p:853-858

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    Web page: http://www.elsevier.com/locate/eneco

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    Keywords: Hydroelectric energy Portugal Luenberger productivity indicator Parallel neutrality;

    References

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