Glass_Water_Retail_Paper_Revised_247_change_adjust_23_adjust_163_RESET_1.pdf (619.2 kB)
Benchmarking water retail cost efficiency in England and Wales
journal contribution
posted on 2020-07-02, 12:42 authored by Sam Williams, Christopher Pickard, Karligash GlassKarligash Glass, Anthony GlassPrivatised water companies in England and Wales are subject to economic regulation by the industry
regulator (Ofwat). Ofwat sets 5-year caps on the prices companies can charge their customers. These caps
are in part based on the benchmarking of companies’ costs. Ofwat has not previously used econometrics
to benchmark domestic retail costs, but it undertook such modelling in its 2019 price review analysis. This
is the first journal article to present an efficiency analysis of domestic water retail costs in England and
Wales. Our approach is different from Ofwat’s, as we propose two new ways of accounting for differences
in the effect on cost of the number of single and dual service customers (water / sewerage-only and water
and sewerage). Some companies’ cost efficiencies vary greatly between the two ways. Depending on the
approach to price capping, this could possibly have non-negligible implications for companies’ caps.
History
School
- Business and Economics
Department
- Economics
Published in
International Journal of the Economics of BusinessVolume
27Issue
3Pages
431 - 467Publisher
Taylor & Francis (Routledge)Version
- AM (Accepted Manuscript)
Rights holder
© Informa UK Limited, trading as Taylor & Francis GroupPublisher statement
This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of the Economics of Business on 21 July 2020, available online: http://www.tandfonline.com/10.1080/13571516.2020.1790979.Acceptance date
2020-06-29Publication date
2020-07-21Copyright date
2020ISSN
1357-1516eISSN
1466-1829Publisher version
Language
- en
Depositor
Prof Karligash Glass Deposit date: 29 June 2020Usage metrics
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