The objective of the this study is to present an alternative approach to the current methodology implemented by Aneel for estimating efficiency of the distribution sector of electric energy in Brazil. For this purpose, Bayesian inference is applied in order to estimate a stochastic cost frontier...

This paper aims to investigate the relation between inefficiency in the Brazilian education system and municipal wealth, discussing how the actual legislation possibly influences it. To that end, we apply a stochastic frontier model which accommodates covariates in the asymmetric error component...