Fronteiras Paramétricas de Eficiência para o Segmento de Transmissão de Energia Elétrica no Brasil

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

It analyses the cost efficiency of Brazilian electricity transmission companies by means of the stochastic frontier analysis in order to contribute for the development of an impartial and fair methodology to be applied by the Brazilian Electricity Regulatory Agency - ANEEL, as a regulation for incentive policy in the transmission industry. It develops a methodology of data collection and treatment of monthly costs of the transmission companies, available in ANEEL data base, for the period of January 1998 to June 2005. It still uses companies technical data and inputs prices (capital cost and wage), which were obtained from ANEELs reports and the companies reports. Using the FRONTIER Programme, it identifies the variables that explain the observed cost and the factors that affect the companies cost efficiency. It still presents how efficiency has evolved since 1998 and the average efficiency of these companies in this period. It concludes that old companies, who have been in the market for many years, are more efficient than the new companies, which have started operating recently. The study seeks an explanation for this fact and demonstrates that these two groups of companies have been increasing their cost efficiency since 1998, but the new companies are progressing more quickly. It stands out that, for the effective application of the results in the regulation for incentives by ANEEL, it is necessary to increase and to improve the data collection, and to check the results with other cost efficiency calculation methods

ASSUNTO(S)

setor elétrico energia elétrica, transmissão electric energy, transmission fronteira estocástica. economia cost efficiency stochastic frontier. eficiência de custo electric energy industry

ACESSO AO ARTIGO

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