List of Articles Non-discretionary factors Open Access Article Abstract Page Full-Text 1 - Decision models for evaluation and selection of suppliers in the presence of cardinal and ordinal data, weight restrictions, and non-discretionary factors: An approach based on DEA with double frontiers Hossein Azizi Rasul Jahed Open Access Article Abstract Page Full-Text 2 - Ranking general two-stage feedback systems: Navigating undesirable exogenous inputs Jafar Pourmahmoud Davoud Norouzi 10.71932/ijm.2025.1200251