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

机译:非边际水价的福利成本:来自英格兰和威尔士仅水公司的证据

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摘要

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.
机译:对监管计划的经济效率进行评估对于监管机构和公用事业至关重要。在这项研究中,通过计算1993年至2009年期间存在的纯水公司(WoC)的无谓损失,首次分析了英格兰和威尔士供水中非边际成本定价的福利成本。 。结果表明,当前的价格方案可能会产生大量的效率成本。我们的估计显示,在1993年至2009年期间,妇委会的效率损失在15至6000万英镑之间。这些金额本来可以按利润重新分配给公司,也可以通过降低价格重新分配给消费者。这项研究的方法论和结果对于监管者和水务管理者都非常感兴趣,以评估价格监管的有效性并做出明智的决定。

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