List of Articles داده های بازه ای Open Access Article Abstract Page Full-Text 1 - Dual Frontiers in Non-convex Data Envelopment Analysis: Efficiency and In-efficiency Assessment and Stability Analysis Nasim Nasrabadi Sheyda Ayati 10.30495/jnrm.2021.15726 Open Access Article Abstract Page Full-Text 2 - Computing the efficiency interval of decision making units (DMUs) having interval inputs and outputs with the presence of negative data M. Rostamy-Malkhalifeh F. seyed Esmaeili Open Access Article Abstract Page Full-Text 3 - Performance Assessment of Investment Firms under Uncertainty Pejman Peykani Farhad Hosseinzadeh Lotfi Emran Mohammadi Reza Tehrani