TY - JOUR AU - Peykani, Pejman AU - Namakshenas, Mohammad AU - Arabjazi, Nasim AU - Shirazi, Fatemeh AU - Kavand, Neda TI - Optimistic and Pessimistic Fuzzy Data Envelopment Analysis: Empirical Evidence from Tehran Stock Market JO - Fuzzy Optimization and Modeling Journal VL - 2 IS - 2 SP - 12 EP - 21 PY - 2021 DO - 10.30495/fomj.2021.1931398.1028 ER -