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Identification of Segments of Thermo Energy Plants with a Latent Class Model

By Carlos Pestana Barros

Abstract

This paper identifies different groups in a cost function framework of thermo energy plants belonging to EDP-Electricity of Portugal. In particular, we have clustered the sample - comprising data for years 1987 to 2006 - into two groups. To do so, we have implemented a stochastic frontier latent class model, a procedure that also permits us to analyze also the efficiency of the thermo energy plants with respect to their own frontiers. The results reveal that some of the plants could improve their efficiency levels substantially.cost efficiency; latent class model; thermo energy plants; stochastic frontier.

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