Total Factor Productivity Growth and Technical Change in the Water and Sewerage Industry

John Ashton ()

The Service Industries Journal, 2000, vol. 20, issue 4, 121-130

Abstract: The characteristics of total factor productivity growth and technical change in the water and sewerage industry of England and Wales are ‘examined within this article. Total factor productivity growth, technical change and the components of technical change are quantified using a time trend model. A translog specification of productive technology is employecl. Very low levels of technical change, the components of technical change and total factor productivity growth are observed over the sample period. Substantial economies of scale are recorded. Three major implications may be drawn from the study findings. Initially, the high levels of investment have yet to .substantially influence the productive technology of the water and sewerage firrns. Secondly, strong empirical evidence of the natural monopoly conditions in the water industry provided. Finally, it may be stated that privatisation does not appear to have raised the level of technical change or productivity growth since 1989.

Date: 2000
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DOI: 10.1080/02642060000000050

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