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Estudos Econômicos (São Paulo)
Print version ISSN 0101-4161On-line version ISSN 1980-5357
TANNURI-PIANTO, Maria Eduarda; SOUSA, Maria da Conceição Sampaio de and ARCOVERDE, Flavia Dowsley. Fronteiras de eficiência estocásticas para as empresas de distribuição de energia elétrica no Brasil: uma análise de dados de painel. Estud. Econ. [online]. 2009, vol.39, n.1, pp.221-247. ISSN 0101-4161. http://dx.doi.org/10.1590/S0101-41612009000100008.
This paper analyzes the efficiency of the Brazilian electrical sector distributing companies based on an econometrics study of information and data that directly affect distributing companiesÂ´ efficiency, such as operational cost, number of employees, volume of energy supplied, and some qualitative indicators, such as the percentage of energy lost, average duration of the supply interruption per year in hours (DEC) and average frequency of the supply interruption per year (FEC). Besides these, some socio-economic indicators are considered, such as appliances ownership and the demographic density of the area each company is located. The analysis starts with the definition of production and cost frontiers, followed by the production and cost frontier functions, applying the Stochastic Frontier Method.
Keywords : efficiency; Brazilian electrical sector; stochastic frontier.