List of Articles Two-stage Network Open Access Article Abstract Page Full-Text 1 - Efficiency analysis in two-stage production systems with the presence of undesirable and reversible factors Mohammad Malmir رضا کاظمی متین Mahnaz Ahadzadeh namin 10.30495/jnrm.2022.66444.2236 Open Access Article Abstract Page Full-Text 2 - Ranking Efficient DMUs in Two-stage Network DEA with Common Weights method M. Ahadzadeh namin E. Khamseh Open Access Article Abstract Page Full-Text 3 - The overall efficiency and projection point in network DEA Zeinab Aghababazadeh Shima Aghababazadeh Open Access Article Abstract Page Full-Text 4 - Finding Common Weights in Two-Stage Network DEA Mohammad Reza Mozaffari mehrnoosh khazraei Open Access Article Abstract Page Full-Text 5 - Input Estimation in Two-Stage Systems with Undesirable Outputs Based on Cost Efficiency Zahra Shiri Daryani Shabnam Razavyan 10.30495/ijdea.2022.68962.1179 Open Access Article Abstract Page Full-Text 6 - Efficiency and Return to Scale of Two-Stage network in Data Envelopment Analysis Using Additive Model Mahboobeh Joghataie Farhad Hosseinzadeh lotfi Tofigh Allahviranloo Open Access Article Abstract Page Full-Text 7 - Calculation of the Efficiency of Two-Stage Network Structures with Additional Inputs to the Second Stage by SBM Approach: A Case Study on Credit Branches of an Iranian State Bank in Guilan Province Saeed Jahangard Patavani Nasima Mahboubi Open Access Article Abstract Page Full-Text 8 - دسته بندی اندازه های انعطاف پذیر در شبکه دو مرحله ای DEA سیده نسرین حسینی منفرد محمدرضا مظفری محسن رستمی مال خلیفه 10.30495/ijim.2022.19684 Open Access Article Abstract Page Full-Text 9 - Performance assessment of Two-stage network structures with the presence of contextual variables Peiman Alidoust Zoghi Maryam Nematizadeh Maryeh Nematizadeh Open Access Article Abstract Page Full-Text 10 - Efficiency Measurement in Two-Stage Network Structures Considering Undesirable Outputs A. Amirteimoori A. Toloie-Eshlaghi M. Homayoonfar Open Access Article Abstract Page Full-Text 11 - A New Method of Sensitivity Analysis of Returns to Scale in Two-Stage Network; A Case Study of the Insurance Industry in Iran Maryam Sarparast Farhad Hosseinzadeh Lotfi Alireza Amirteimoori Mohsen Rostamy-Malkhalifeh 10.22034/amfa.2022.1946180.1658 Open Access Article Abstract Page Full-Text 12 - Eco-Efficiency in two-stage structure;A DDF Approach Monireh Zoriehhabib Mahnaz Maghbouli Open Access Article Abstract Page Full-Text 13 - Outputs Estimation and Efficiency Improvement of Two-Stage Network Systems Zahra Shiri Daryani Sahbnam Rzavyan