The welfare costs of non-marginal water pricing: evidence from the water only companies in England and Wales

Simon Porcher, Alexandros Maziotis and Maria Molinos-Senante

LSE Research Online Documents on Economics from London School of Economics and Political Science, LSE Library

Abstract: The evaluation of the economic efficiency of regulatory schemes is essential for regulators and utilities. In this study it is analysed for the first time the welfare costs of non-marginal cost pricing in the water supply in England and Wales, by computing the deadweight loss of the water only companies (WoCs) that existed over the period of 1993–2009. The results indicate that the current price schemes can have substantial efficiency costs. Our estimates show that the loss of efficiency for the WoCs lies between 15 and 60 million GBP over the period 1993–2009. These amounts could have been redistributed either to the companies in terms of profits or to the consumers via price reductions. The methodology and results of this study are of great interest for both regulators and water utilities managers to evaluate the effectiveness of price regulation and make informed decisions.

Keywords: profits; deadweight loss; water industry (search for similar items in EconPapers)
JEL-codes: J50 (search for similar items in EconPapers)
Date: 2017-05-15
New Economics Papers: this item is included in nep-reg
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Citations: View citations in EconPapers (4)

Published in Urban Water Journal, 15, May, 2017, 14(9), pp. 947-953. ISSN: 1573-062X

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Working Paper: The welfare costs of non-marginal water pricing: evidence from the water only companies in England and Wales (2017)
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Persistent link: https://EconPapers.repec.org/RePEc:ehl:lserod:82898

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