and technological change by using the non-parametric Malmquist Productivity Index (MPI) over the period from 2007 to 2014 … industries and companies. By applying DEA theory to the non-financial sector, the relative efficiency of 27 listed corporations … financial crisis and the recovery thereafter. Further, the productivity change was decomposed into technical efficiency change …

companies in the medium and long term. The methodology used consists of calculating different profitability and productivity … at significantly low productivity levels and in conditions of technical inefficiency, due to both the inability of the …