List of Articles Open Access Article Abstract Page Full-Text 1 - The Most Revenue Efficiency with Price Uncertainty Samira Salehpour Nazila Aghayi Open Access Article Abstract Page Full-Text 2 - Assessment of Cost Effectiveness of a Firm Using Multiple Cost Oriented DEA and Validation with MPSS based DEA Subhadip Sarkar Open Access Article Abstract Page Full-Text 3 - Capacity utilization in data envelopment analysis with integer data Balal karimi Esmaeil Khorram Open Access Article Abstract Page Full-Text 4 - Efficiency Evaluation and Ranking DMUs in the Presence of Interval Data with Stochastic Bounds Hamid Sharafi Mohsen Rostamy-Malkhalifeh Alireza Salehi Mohammad Izadikhah Open Access Article Abstract Page Full-Text 5 - Revise Approach to Measuring Congestion Based on the Comparison of Inputs A.A. Nouraa E. Hosseini Open Access Article Abstract Page Full-Text 6 - Cross Efficiency Evaluation with Negative Data in Selecting the Best of Portfolio Using OWA Operator Weights Sh. Banihashemi M. Sanei