List of Articles Two-Stage Networks Open Access Article Abstract Page Full-Text 1 - 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