Stochastic frontier analysis is used to evaluate the technical and allocative efficiencies for banks classified based on industry specialization (agricultural and non-agricultural banks) and solvency condition (non-critical and critical banks). The analytical framework allows for comparisons of...

This paper proposes an efficiency analysis of the major European incumbent firms in the fixed telecommunications sector. The non-parametric approach, that has been adopted here, expresses the efficiency according to a directional distance measure, allowing to consider the different nature of...