effects are also found on separating and shrinking individual posterior efficiency distributions when heterogeneity affects … efficiency scores and rankings. In particular, including heterogeneity simultaneously in both parameters of the inefficiency … overlapping of the posterior efficiency distributions, which provides both more reliable efficiency scores and rankings. Copyright …

use in efficiency studies. …

The purpose of this study is to analyze the level of cost efficiency of Swiss Post's postal delivery units to enable … models to assess cost efficiency in these units to account for unobserved heterogeneity. The results from applying Mundlak … that the cost efficiency values lie within a lower and upper bound of the other recent and standard econometric frontier …

adjustment that allow them to recover rapidly the efficiency losses derived from merging processes …

omission leads to over (under) estimate cost (profit) efficiency. Risk-taking is also found to have different effects on … efficiency of banks with different size and affiliation, and those involved in mergers and acquisitions. In particular, greater … exposures to credit and market risk are found to be key profit efficiency drivers.Likewise, lower liquidity risk and capital …

The electricity reform in Colombia has exhibited gains in terms of reliability but its effects on firms efficiency and … have not found evidence of improvements, although large differences in efficiency have been found among firms. This … in the technology. The model incorporates total expenses, service quality and energy losses in an efficiency analysis of …

The electricity reform in Colombia has exhibited gains in terms of reliability but its effects on firm efficiency and … have not found evidence of improvements, although large differences in efficiency have been found among firms. This … in the technology. The model incorporates total expenses, service quality and energy losses in an efficiency analysis of …

The stochastic frontier model with heterogeneous technical efficiency explained by exogenous variables is augmented … simultaneous maximum likelihood estimation of all parameters is exhibited. The technical efficiency estimates are comparable to … improve estimates of technical efficiency in a production frontier that is usually biased downwards. …