List of Articles Cost efficiency Open Access Article Abstract Page Full-Text 1 - Cost Malmquist Productivity index in non competitive environment of price in Data Envelopment Analysis and the use of it in the dealings of the Iranian Stock Exchange Elham Rezaei hezaveh Reza Fallahnejad 10.22034/amfa.2019.1879646.1302 Open Access Article Abstract Page Full-Text 2 - 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 3 - The sustainability radius of the cost efficiency in Interval Data Envelopment Analysis: A case study from Tehran Stocks Esmaeil Mombini Mohsen Rostamy-Malkhalifeh Mansour Saraj 10.22034/amfa.2021.1917327.1528