List of Articles Efficiency Open Access Article Abstract Page Full-Text 1 - Assessment of the efficiency of banks accepted in Tehran Stock Exchange using the data envelopment analysis technique mehdi esfandiar hossein jahangirnia Open Access Article Abstract Page Full-Text 2 - Interval Efficiency Assessment in Network Structure Based on Cross –Efficiency nasim roudabr seyed esmaeil najafi Open Access Article Abstract Page Full-Text 3 - Evaluating the Production Materials Suppliers of Saipa Industrial Group by Using Data Envelopment Analysis(DEA) A. Javadinia A. Gholam Abri Open Access Article Abstract Page Full-Text 4 - A Hybrid Method of DEA and MODM in Grey Environment Alireza Alinezhad Open Access Article Abstract Page Full-Text 5 - The relation of the management styles with the managerial efficiency and the ranking in the executive agencies: the case of Mazandaran Ahmad Jaafarnezhad Hamzeh Samadi Miarkolaei Hossein Samadi Miarkolaei