List of Articles Efficiency Open Access Article Abstract Page Full-Text 1 - An Alternative Prioritization Method in the Presence of Contextual Variables: A case on Gas Companies Maryeh Nematizadeh Alireza Amirteimoori Sohrab Kordrostami Leila Khoshandam Open Access Article Abstract Page Full-Text 2 - Modified Super Efficiency in Presence of Infeasibility: A Nonradial Approach Farhad Hosseinzadeh Lotfi G.L. Jahanshahloo Z. Moghaddas M. Vaez-ghasemi Open Access Article Abstract Page Full-Text 3 - Profitability and Effectiveness by Means Two Stage DEA Model in Iranian Bank Morteza Shafiee Open Access Article Abstract Page Full-Text 4 - Evaluating Cost Efficiency in Fuzzy Environment by Using Expected Value Ali Payan Mohsen Hekmatnia Open Access Article Abstract Page Full-Text 5 - The Effect of Supply Chain Integration on Operational Efficiency and Value Creation Seyed-Javad Iranban Open Access Article Abstract Page Full-Text 6 - Identifying Factors Affecting Energy Waste in the Production Industry and Providing a Suitable Model for Energy Efficiency and Development of Renewable Energy in the Production Sector Aman allah Rahpeyma Mohammad Bahrami seifabad Yaghoub Ansari Roohalah Negahdari Nia