List of Articles Multiplier Model Open Access Article Abstract Page Full-Text 1 - Evaluating Efficiency by Multiplier Method in Two-Stage Unit with Undesirable Outputs Sepideh Vatani 10.30495/ijdea.2022.68506.1168 Open Access Article Abstract Page Full-Text 2 - Development of a Network Data Envelopment Analysis (NDEA) model for investigation of the internal structure of decision-making units Reza Soleymani-Damaneh