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February 21, 2015

Springer, February 2015

A book chapter by O. Yardımcı and Prof. Dr. M.B. Karan 
in the “Energy Technology and Valuation Issues”

Bir bölümünü Prof. Dr. M.B. Karan ile kaleme aldığımız 
“Energy Technology and Valuation Issues” isimli kitap


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Efficiency and Service Quality Analyses of the Natural Gas Distribution Companies: A Case Study of Turkey

Okan Yardımcı and Mehmet Baha Karan
Abstract
The Energy Market Regulatory Authority (EMRA) sets the tariff that determinesthe revenue requirements of the Turkish natural gas distribution companies by using a popular type of an incentive regulation, the price cap method. Generally, incentive regulation improves efficiency and reduces costs; on the other hand the companies may not be willing to increase the service quality in this kind of regulation. This chapter analyzes the efficiency and service quality of the Turkish natural gas distribution companies. The findings should also be of interest to regulators in other developing countries that are at the early stage of
their natural gas market regulation. The companies’ efficiency scores are evaluated both by non parametric and parametric methods, Data Envelopment Analysis (DEA) and Stochastic Frontier Analysis (SFA) respectively. The same distribution companies are ranked by the service quality scores that are obtained from service quality data. The results are used to determine the relationship between efficiency and service quality of the companies, to decide on the effectiveness of the regulation and to suggest a reward/penalty scheme for the tariff design.
Keywords
Efficiency • Natural gas distribution companies • Price cap • Regulation • Service quality

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