This research aims at analyzing the impact of continuous improvement and learning processes regarding efficiency and production volume in an armament manufacturer. A longitudinal case study comprising a period of six years of analysis in the company production lines was carried out. Data...

Purpose The purpose of this paper is to longitudinally assess the technical efficiency and productivity, considering investment projects and technological change, in a second-generation petrochemical company. Design/methodology/approach The study uses data envelopment analysis (DEA) together...