Total factor productivity growth and technical change in the water and sewerage industry

J. K. Ashton*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 employed. 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 firms. Secondly, strong empirical evidence of the natural monopoly conditions in the water industry is provided. Finally, it may be stated that privatisation does not appear to have raised the level of technical change or productivity growth since 1989.

Original languageEnglish
Pages (from-to)121-130
Number of pages10
JournalService industries journal
Volume20
Issue number4
DOIs
Publication statusPublished - 2000

Cite this