The evolution and main determinants of productivity in Brazilian electricity distribution 1998–2005: An empirical analysis

Ramos–Real, Francisco Javier; Tovar, Beatriz; Iootty, Mariana; Almeida, Edmar Luiz Fagundes de; Pinto, Helder Queiroz

doi:10.1016/j.eneco.2008.11.002

Cited by 69 publications

(38 citation statements)

References 23 publications

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“…These losses can be of technical and nontechnical nature (measurement error and unmetered supplier). A reduction in costs to the consumer requires a reduction in both forms of losses and contributes to a reduction in CO 2 emissions [52]. The Gross energy consumption less the distribution losses gives Net energy consumption (MWh).…”

Section: Model 3 (Quality Service)mentioning

confidence: 99%

A framework for establishing the technical efficiency of Electricity Distribution Counties (EDCs) using Data Envelopment Analysis

Mullarkey

Caulfield

McCormack

et al. 2015

Energy Conversion and Management

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Section: Model 3 (Quality Service)mentioning

confidence: 99%

A framework for establishing the technical efficiency of Electricity Distribution Counties (EDCs) using Data Envelopment Analysis

Mullarkey

Caulfield

McCormack

et al. 2015

Energy Conversion and Management

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“…The reforms experienced in the electricity distribution sector worldwide in the last decade, have had, however, different impacts across countries. Ramos-Real et al (2009), for example, in assessing the evolution and main determinants of productivity in the Brazilian electricity distribution sector, found evidence that the reforms in the regulation implemented in the 1990s, which resulted in the privatisation of most of the firms, do not seem to have led these to behave in a more efficient manner. The poor performance of a considerable number of Brazilian distribution companies had already been previously identified by Resende (2002).…”

Section: Single-country Studiesmentioning

confidence: 99%

Formative evaluation of electricity distribution utilities using data envelopment analysis

Santos

Amado

Rosado

2011

Journal of the Operational Research Society

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-The use of Data Envelopment Analysis (DEA) in the electricity distribution sector has been prolific in the number of papers published in research journals. However, while numerous studies have been documented, they have mostly been summative. Their aim has been predominantly descriptive and classificatory. This paper argues that evaluations of a formative nature are more effective than summative studies in promoting a better understanding of the structures and processes of electricity distribution utilities and, consequently, are more appropriate to contribute to performance improvement. To illustrate the use of DEA for formative evaluation, and highlight some of the difficulties of using DEA in practice, this paper compares the cost-efficiency of the Portuguese electricity distribution companies from 2002 to 2006. A dynamic analysis using Malmquist Indices is also conducted in order to evaluate the changes in productivity over this period. Our analysis shows that the application of DEA for formative purposes meets some difficulties. In particular it shows that whilst the modelling of productivity/efficiency scores using DEA is relatively straightforward, it is comparatively more difficult to develop models that are economically valid and that produce results with face validity. Based on the insights derived from this analysis the paper provides some recommendations regarding the successful application of DEA for performance improvement.

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“…To revise the X-Factor, usually the regulator grounds this variable in the studies about Total Productivity Factor (TPF) and efficiency of electric power companies. In a recent econometric study, Ramos -Real et al (2009) showed that only after 2004 electric power distributors started to present satisfactory productivity indexes and positive rates of return. The same study also shows that companies with smaller rate of electric power supply by kilometer (KWh/Km) of distribution networks tend to present weak performance compared those with a larger rate.…”

Section: Southeast-midwest Subsystemmentioning

confidence: 99%

Energy policy and regional inequalities in the Brazilian economy

2013

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Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in ABSTRACTThe objective of this paper is to evaluate the long-run regional impacts of tariff policy of the Brazilian electric power sector. This sector has undergone a reform process started in the 1990's. Since the beginning of the reform, two different distribution spatial trends of electric power tariffs have emerged among the Brazilian states, one of convergence and another of spatial divergence. These trends have been guided by the new electric power tariff policy and by the spatial features of the Brazilian economy, which is marked by high degree of spatial concentration and hierarchical distribution of large markets. In addition, electric power distribution is a capital-intensive activity marked by the presence of strong economies of scale. For this reason, the recent electric power prices differentials might be caused by differentials of market size, which provide better conditions for the achievement of economies of scale for electric power ut ility companies located in large markets. Based on the fact that electric power is an important intermediate input to the production process, and the economic sectors have input -output linkages among then, an Energy Interregional Computable General Equilibrium model was used to simulate the long-run regional impacts of electric power tariff policy in Brazil. The simulations showed that, the heterogeneity of energy-intensity and the differentials of energy substitution drive the spatial impacts of electric power prices changing. On the other hand, the recent trend of spatial dispersion of electric power prices might contribute to decrease the long-run economic growth and to increase the regional inequalities Brazil.

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The evolution and main determinants of productivity in Brazilian electricity distribution 1998–2005: An empirical analysis

Abstract: que lo solicitan. No obstante están disponibles en texto completo a través de Internet: http://www.fedea.es. These Working Paper are distributed free of charge to University Department and other Research Centres. They are also available through Internet: http://www.fedea.es.

Cited by 69 publications

References 23 publications

A framework for establishing the technical efficiency of Electricity Distribution Counties (EDCs) using Data Envelopment Analysis

A framework for establishing the technical efficiency of Electricity Distribution Counties (EDCs) using Data Envelopment Analysis

Formative evaluation of electricity distribution utilities using data envelopment analysis

Energy policy and regional inequalities in the Brazilian economy

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