List of Articles Open Access Article Abstract Page Full-Text 1 - Evaluating the Efficiency of Two-stage Networks using Ratio Analysis Asieh sadat Hatami Morteza Shafiee Mozhdeh Rabbani Mohammad Reza Mozaffari Open Access Article Abstract Page Full-Text 2 - NEW METHODS BASED ON STABILITY VERSUS CHANGES FOR EFFICIENT DECISION MAKING UNITS IN DATA ENVELOPMENT ANALYSIS Sorena Jafarigorzin Iraj Asadi Talooki Ahmad Mirzanezhad Open Access Article Abstract Page Full-Text 3 - Profit efficiency in non competitive market Ghasem Tohidi Simin Tohidnia Open Access Article Abstract Page Full-Text 4 - Estimating Production Function under Endogeneity: A Model Based on Data Envelopment Analysis Roghyeh Malekii Vishkaeii Behrooz Danishian Farhad Hosseinzadeh lotfi Open Access Article Abstract Page Full-Text 5 - Ranking of Non-Extreme Efficient units based on multi ideal DMUs in PPS Alireza Salehi Farhad Hosseinzadeh lotfi Mohsen Rostamy-Malkhalifeh Open Access Article Abstract Page Full-Text 6 - Analysis of the performance of symbols of cement companies in the Tehran Stock Exchange, using data envelopment analysis based on integer indices Mohhamad Reza Shahriari