List of Articles Cost efficiency Open Access Article Abstract Page Full-Text 1 - Introducing a new inefficiency source due to inappropriate price selection in a Non-Competitive Environment in Data Envelopment Analysis (a case study in the Imam Khomeini Oil Refinery Company of Shazand in Iran) Elham Rezaei hezaveh Reza Fallahnejad Masoud Sanei Mohammad Izadikhah Open Access Article Abstract Page Full-Text 2 - Allocation efficiency in network DEA S. Banihashemi G. Tohidi Open Access Article Abstract Page Full-Text 3 - Cost Malmquist Productivity Index for Bi-level Units: A Case Study from Bank Mona Habibpoor Mohammadreza Alirezaee Jalil Rashidinia Open Access Article Abstract Page Full-Text 4 - Measuring the Interval industry cost efficiency score in DEA Ghasem Tohidi Simin Tohidnia 10.22034/amfa.2020.1880449.1308 Open Access Article Abstract Page Full-Text 5 - Inverse Data Envelopment Analysis to Estimate Inputs with Triangular Fuzzy Numbers Mohammad Taghi Yahyapour-Shikhzahedi sohrab kordrostami S Edalatpanah Alireza Amirteimoori Open Access Article Abstract Page Full-Text 6 - Estimating multi-period global cost efficiency and productivity change of systems with network structures S. Tohidnia G. Tohidi