Abstract

MEZA, Lidia Angulo; MELLO, João Carlos Correia Baptista Soares de; GOMES, Eliane Gonçalves  and  FERNANDES, Artur José Silva. Variables selection in DEA applied to an analysis of the electric energy market. Inv. Op. [online]. 2007, vol.27, n.1, pp.21-36. ISSN 0874-5161.

In this paper we have two main goals. From a theoretical point of view we intend to develop an improvement to the DEA variable selection models. It is in the variable normalisation step that this improvement takes place. From a practical point of view we intend to measure an energetic efficiency of the 27 Brazilian estates. A state achieves this efficiency when it has high values of some socio-economic indexes and low level of energy consumption. We used the non-parametrical approach of Data Envelopment Analysis (CCR and BCC models). We also used the inverted frontier DEA model.

Keywords : Data Envelopment Analysis; Variables selection; Electrical Sector.

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