Nowadays the reduction or elimination of waste has become a major environmental concern among industrialized countries and a priority for companies. In this work it is carried out a review of the postulates of the classical economic model, existing until a few dates, in connection with the...

Analysis (DEA) have become very popular in the analysis of productive efficiency. This paper undertakes a comparison of the SFA and the constant returns to scale (CRS) and variable returns to scale (VRS) output-oriented DEA models, based on a sample of 165 dairy farms in Greece. However, the aim...