F Hosseinzadeh Lotfi - Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran
M. Jahanbakhsh - Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran

By distinction between efficiency and effectiveness scales, the aim of this paper is to propose a model that can show the differents of efficiency and effectiveness. For this purpose, enveloping form of ICCR model ,has considered to calculate simultaneously the influences of efficiency and effectiveness. this model, is a linear programming model based on Data envelopment analysis (DEA), that combine the input and output oriented CCR model to investigate the efficiency and effectiveness impressed each other ,in a three-stage process. By applying the model on data of ۲۴ bank branches, the result clarify comprehensive view of the performance of the branches that have been substantially three-stage.

Data Envelopment Analysis, Efficiency, effectiveness