The Impact of Regulation on Cost Efficiency: An Empirical Analysis of Wisconsin Water Utilities

Cécile Aubert and Arnaud Reynaud

Journal of Productivity Analysis, 2005, vol. 23, issue 3, 383-409

Abstract: The impact of regulation of efforts to minimize costs has been widely discussed, but remains difficult to measure. The sophisticated regulation of water utilities in Wisconsin allows us to attempt such on assessment since different firms can be under different regulatory regimes (price cap or rate-of-return) in the same geographical area at the same time. To measure the impact of regulation on efficiency, we use a stochastic cost frontier approach defining the unobservable efficiency of a water utility as a function of exogeneous variables. Using a panel of 211 water utilities observed from 1998 to 2000, we show that their efficiency scores can be partly explained by the regulatory framework. Copyright Springer Science+Business Media, Inc. 2005

Keywords: public utility regulation; stochastic cost frontier; efficiency (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (46)

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DOI: 10.1007/s11123-005-2216-8

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