List of Articles کارآیی نسبی Open Access Article Abstract Page Full-Text 1 - A Study on the Efficiency of Companies Listed on the Tehran Stock Exchange Using Data Envelopment Analysis Hiresh Soltanpanah Iman Dadashi Samira Zarei Open Access Article Abstract Page Full-Text 2 - Measuring the Relative Efficiency of Toll Switched Exchanges (sc/pcs) Based on Hierarchical Data Classification through Data Envelopment Analysis Method (Case Study: Telecommunication Infrastructure Company) Ebrahim Keyvan Mehdi Farshid farzad Reza Radfar Nir Sorkhabi Open Access Article Abstract Page Full-Text 3 - Optimization of Energy Consumption in Milk Production Units through Integration of Data Envelopment Analysis Approach and Sensitivity Analysis ح. سلطانعلی ب. عمادی ع. روحانی م. خجستهپور ا. نیکخواه