DEA models help a DMU to detect its (in-)efficiency and to improve activities, if necessary. Efficiency is only one economic aim for a decision-maker; however, up- or downsizing might be a second one. Improving efficiency is the main topic in DEA; the long-term strategy towards the right production size should attract our attention as well. Not always the management of a DMU primarily focuses o...

As part of a large-scale project, the current qualitative study investigated the possible contribution of a consciousness-raising interactive workshop (as a form of professional development activity) to 30) 22 female and 8 male) Iranian EFL teachers’ professional identity construction. Thirty Iranian EFL teachers were asked to write two reflective journals (one individually and one collectively...

in this paper, the portfolio selection problem is considered, where fuzziness and randomness appear simultaneously in optimization process. since return and dividend play an important role in such problems, a new model is developed in a mixed environment by incorporating fuzzy random variable as multi-objective nonlinear model. then a novel interactive approach is proposed to determine the pref...