Production of desirable outputs is often accompanied by undesirable by-products that have damaging effects on the environment, and whose disposal is frequently regulated by public authorities. In this paper, we compute directional technology distance functions under particular assumptions...

Purpose. This paper focuses on analyzing the effect that public reforms have on the efficiency of state-owned enterprises in regulated environments. Design, methodology, approach. The research is focused in the postal sector where public and private companies must obey a legal framework related...