The history of natural gas in Turkey started in 1970s by the usage of domestic gas in cement factories. However, natural gas began penetrating the energy market in 1980s with the usage of natural gas in Ankara. In the following years, the number of cities using natural gas reached six. Then, a new era started with the enactment of Natural Gas Market Law in 2001 and 53 distribution tenders have been realized by Energy Market Regulatory Authority until 2009. This thesis analyzes the performance of 38 Turkish natural gas distribution companies by using a non-parametric method, Data Envelopment Analysis. The results are used to determine the most proper model specification, to detect the important criteria affecting the efficiency levels and to find the common characteristics of the most inefficient firms. The results show that public firms compared to private firms, non-tender firms compared to tender firms, large firms compared to small firms and firms operating in more developed areas compared to firms operating in underdeveloped areas utilize resources and manage costs more efficiently. However, we can not get a certain conclusion about the comparison of old firms and new firms. Lastly, we try to detect the common characteristics of the most inefficient firms and find that the major problem is low delivery amount.

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Submitted by João Paulo Mesquita Villela (jpmv_nit@yahoo.com.br) on 2018-03-05T22:41:17Z No. of bitstreams: 1 Dissertação JP - WACC-GN - Final.pdf: 4843974 bytes, checksum: 53a8c6a560387b7ac0c7d2f370bdc655 (MD5) / Approved for entry into archive by GILSON ROCHA MIRANDA (gilson.miranda@fgv.br) on 2018-03-12T15:00:37Z (GMT) No. of bitstreams: 1 Dissertação JP - WACC-GN - Final.pdf: 4843974 bytes, checksum: 53a8c6a560387b7ac0c7d2f370bdc655 (MD5) / Made available in DSpace on 2018-03-16T17:17:30Z (GMT). No. of bitstreams: 1 Dissertação JP - WACC-GN - Final.pdf: 4843974 bytes, checksum: 53a8c6a560387b7ac0c7d2f370bdc655 (MD5) Previous issue date: 2018-01-18 / The objective of this work is to propose a methodology for determining the weighted average cost of capital to be employed by the regulatory agency in the tariff review process of natural gas distributors in the state of São Paulo. The challenge in this process is to establish a remuneration that guarantees the lowest cost with the greatest benefit to the customers and at the same time provides the maintenance of the economic balance and the incentive to expand the services provided by the concessionaires. The complexity of the study becomes evident when we verify the great dispersion of values proposed in the contributions sent to the Sanitation and Energy Regulatory Agency of the State of São Paulo (ARSESP) during the public consultation process. In this sense, the different approaches used by other regulatory agencies also make it difficult to establish a standardized solution to the problem. In this way, we analyzed initially the methodology defined by the ARSESP, the contributions received during the public consultation process carried out by the agency and some references of national and international regulatory practices. Finally, we sought to solve the issue by proposing a methodology considered adequate to estimate the weighted average cost of capital for the natural gas distributors in the state of São Paulo. / O objetivo deste trabalho é propor uma metodologia para a determinação do custo médio ponderado de capital a ser empregado pela agência reguladora no processo de revisão tarifária das distribuidoras de gás natural do estado de São Paulo. O desafio nesse processo é estabelecer uma remuneração que garanta o menor custo com o maior benefício para os clientes e ao mesmo tempo proporcione a manutenção do equilíbrio econômico e do estímulo a ampliação dos serviços prestados pelas concessionárias. A complexidade do estudo torna-se evidente ao verificarmos a grande dispersão de valores propostos nas contribuições enviadas a Agência Reguladora de Saneamento e Energia do Estado de São Paulo (ARSESP) durante o processo de consulta pública. Nesse sentido, as diferentes abordagens utilizadas por outras agências regulatórias também dificultam a definição de uma solução padronizada para o problema. Desta forma, analisou-se inicialmente a metodologia definida pela ARSESP, as contribuições recebidas durante o processo de consulta pública realizado por esta agência e referências das práticas regulatórias nacionais e internacionais. Finalmente, procurou-se solucionar a questão propondo uma metodologia considerada adequada para estimar o custo médio ponderado de capital para as distribuidoras de gás canalizado do estado de São Paulo.

Although the German framework of incentive-based energy regulation appears to be well-defined because it draws from international experience and eliminates several present drawbacks existing with revenue-cap regulation doubts of industry and politicians concerning the application of benchmarking techniques and more importantly, the future industry structure, remain. The regulation scheme is based on experience with energy sector reforms in the US due to it being a precursor in this regard, e.g. by introducing incentive-based regulation as early as 1994 and publishing the relevant data in a very detailed way. This thesis therefore brings together the two issues of certain efficiency measurement problems and the industry restructuring in Germany and the US in order to contribute to the current discussion of robust benchmarking and to provide political implications related to the industry’s structure. Therefore, the application of DEA and SFA constitutes the heart of the whole study. These techniques are applied on German electricity DSOs as well as on data for US electricity DSOs and US gas TSOs. The application to US data can then be used to derive information about business strategies and their success in a sector that is being restructured. The US experience will lead to relevant German policy implications with respect to the future structure of the energy industry in Germany. / Der deutsche Regulierungsansatz erscheint im Allgemeinen als ausgewogen, da er zum einen internationale Erfahrungen mit einbezieht und zum anderen bestehenden Schwächen der Erlös-Obergrenzenregulierung berücksichtigt. Dennoch bestehen Zweifel seitens Industrie- und Politvertretern bezüglich der Anwendung von Benchmarking-Techniken und noch bedeutsamer der zukünftigen Industriestruktur. Der regulatorische Rahmen basiert auf Erfahrungen aus der Regulierung der Energiewirtschaft aus den USA, da diese eine Vorreiterrolle in dieser Hinsicht innehaben, beispielsweise aufgrund der frühen Einführung der Anreizregulierung in 1994 und der sehr detaillierten Veröffentlichung der relevanten Daten. Diese Arbeit verknüpft daher diese zwei Aspekte zum einen der Existenz gewisser Problemfelder bei der Effizienzmessung als auch der Umstrukturierung der deutschen Industriestruktur in der Energiewirtschaft. Damit trägt sie zu der aktuellen Diskussion mit Bezug auf robustes Benchmarking bei und liefert zudem politische Implikationen bezüglich der Industriestruktur. Zu diesem Zweck steht die Anwendung der für die deutsche Regulierung der Energienetze relevanten Benchmarking-Techniken (Data Envelopment Analysis (DEA) und Stochastic Frontier Analysis (SFA)) im Zentrum der gesamten Studie. Die empirischen Analysen beziehen sich dabei auf deutsche Elektrizitätsverteilnetzbetreiber sowie auf Elektrizitätsverteilnetzbetreibern und Ferngasgesellschaften aus den USA. Die Analysen von US Daten können dann genutzt werden, um gehaltvolle Informationen über Unternehmensstrategien und deren Erfolg in einem restrukturierten Sektor zu gewinnen. Diese Erfahrungen münden dann in Schlussfolgerungen und Empfehlungen für die deutsche Regulierung und Industriestruktur der deutschen Energienetzwirtschaft.