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Productivity Development for Norwegian Electricity Distribution Companies 2004-2013

Cheng, Xiaomei; Bjørndal, Endre; Lien, Gudbrand; Bjørndal, Mette
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URI
http://hdl.handle.net/11250/2356266
Date
2015-10-07
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  • Discussion papers (FOR) [591]
Abstract
Norwegian distribution companies have been subjected to an incentive regulation

scheme from 1997, and the efficiency incentives were further strengthened with the

introduction of yardstick regulation in 2007. We examine the productivity development

for these companies in the period from 2004 to 2013. Using three benchmarking

methods, DEA, SFA, and StoNED, we examine productivity change, with the usual

decompositions into efficiency change, technical change, and scale efficiency change.

Increasing investments and use of accounting-based capital costs in our analysis may

lead to a negative bias in the productivity change estimates, and we therefore perform

our analysis with and without capital costs. Our results indicate a negative productivity

development for the whole period from 2004 to 2013, and we do not observe a positive

effect of the change in regulation regime from 2007.
Publisher
FOR
Series
Discussion paper;27/15

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