List of Articles Open Access Article Abstract Page Full-Text 1 - Presenting a Hybrid Approach based on Two-stage Data Envelopment Analysis to Evaluating Organization Productivity E. Najafi M. Fallah S. Hamed Open Access Article Abstract Page Full-Text 2 - Prioritizing Potential Risks based on Failure Mode and Effects Analysis Using Data Envelopment Analysis: a case study B. Nasr Esfahani H. Shirouyehzad F. Mokhatab Rafiei Open Access Article Abstract Page Full-Text 3 - Malmquist Productivity Index for Multi Time Periods Y. Jafari Open Access Article Abstract Page Full-Text 4 - A Russell Measure for Modeling Environmental Performance H. Zare Haghighi M. Rostamy-Malkhalifeh Open Access Article Abstract Page Full-Text 5 - The Calculation of Unit's Efficiency by Using the Interval B. Babazadeh E. Najafi M. AhadzadehNamin Y. jafari Z. Ebrahimi Open Access Article Abstract Page Full-Text 6 - The Efficiency of MSBM Model with Imprecise Data (Interval) F. seyed Esmaeili