List of Articles Open Access Article Abstract Page Full-Text 1 - A New Approach for Solving Fully Fuzzy Bilevel Linear Programming Problems S. F. Tayebnasab F. Hamidi M. Allahdadi Open Access Article Abstract Page Full-Text 2 - Defuzzification Method for Solving Fuzzy Linear Programming Problems Rahim Saneifard Rasoul Saneifard Open Access Article Abstract Page Full-Text 3 - Local Annihilation Method and Some Stiff Problems A. Abdollahi E. Babolian Open Access Article Abstract Page Full-Text 4 - Identification and Ranking Effective Factors in Increasing Personnel Satisfaction with Intuitionistic Fuzzy Data in Steel and Rolling Unit of Saba (Mobarakeh Steel Company) E. Asghariz‎adeh M. Lotfi M. ‎Hosseinzadeh‎ H. Amoozad Mahdiraji S. Salahshour‎ Open Access Article Abstract Page Full-Text 5 - A Hybrid DEA Based CHAID and Imperialist Competitive Algorithm for Stock Selection F. Faezy Razi Open Access Article Abstract Page Full-Text 6 - Solving a Joint Availability-Redundancy Optimization Model with Multi-State Components with Meta-Heuristic A. H. Borhani Alamdari‎‎‎ M. Sharifi Open Access Article Abstract Page Full-Text 7 - Computing the Matrix Geometric Mean of Two HPD Matrices: A Stable Iterative Method F. Kiyoumarsi Open Access Article Abstract Page Full-Text 8 - Performance Measurement Techniques In the Presence of Undesirable Products S. Masrouri AR. Amirteimoori S. Kordrostami Open Access Article Abstract Page Full-Text 9 - Window Network Data Envelopment Analysis: An Application to Investment Companies P. Peykani E. Mohammadi Open Access Article Abstract Page Full-Text 10 - A New Version of the Edge Geometric-Arithmetic Index M. Saki