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...

We study cartel stability in a differentiated price-setting duopoly with returns to scale. We show that a cartel may be equally stable in the presence of lower differentiation, provided that the decreasing returns parameter is high. In addition we demonstrate that for a given factor of discount,...