Productivity change and its determinants: Application of the Malmquist index with bootstrapping in Iranian steam power plants

In this paper, the bootstrapping Malmquist index is used to derive the productivity levels of Iranian steam power plants for the period of 2007–2012. The research shows that the average level of productivity has significantly decreased. It was also indicated that technological changes have had more...

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Bibliographic Details
Published in:Utilities policy 2014-12, Vol.31, p.114-120
Main Authors: Gharneh, Naser Shams, Nabavieh, Alireza, Gholamiangonabadi, Davoud, Alimoradi, Mohammad
Format: Article
Language:English
Subjects:
Bootstrap mechanism
Bootstrapping Malmquist index
Energy economics
Iran
Power plants
Productivity measurement
Regression analysis
Steam power plants
Truncated regression
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Summary:In this paper, the bootstrapping Malmquist index is used to derive the productivity levels of Iranian steam power plants for the period of 2007–2012. The research shows that the average level of productivity has significantly decreased. It was also indicated that technological changes have had more effects on productivity than efficiency changes. To study the influence of various explanatory factors, the truncated regression method was used. The results show that factors such as liberalization of energy carrier prices, the ratio of the number of technicians to the total number of staff, and the age of power plants affect levels of productivity. •In this paper, the productivity levels of all steam power plants in Iran are studied.•Results indicate that technology, efficiency, and TFP have declined on average.•The main factor causing change in productivity is technological change.•Liberalization of energy carriers have the potential to improve TFP over time.
ISSN:0957-1787
1878-4356
DOI:10.1016/j.jup.2014.10.001