In this work a non parametric approach is used in order to evaluate the relative efficiency of a sample of firms producers of wooden goods, in presence of non desirable outputs. As main results, we find that the consideration of several restrictions on the expansion of non desirable outputs...

The article distinguishes the scientist of the opinable thing, because the epistemology must explain: the nature and the path to obtain the concepts and scientific theories; the methodology with which one threads the laws and theories that give sustenance to sciences. This is the importance of...

This article continues an article written by the same author and published by CIRIEC-España in 1997 (no. 25). It analyses social economy at three cognitive levels: first, as a social reality (Social Economy); second, as a scientific discipline which studies its previous reality (the science of...