TY - JOUR AU - Sefati, Farid AU - Torabi, Taghi AU - hozhabr Kiani, Kambiz TI - Survey Economies of Scale Efficiency Changes in government and Private Banks by Using Stochastic Frontier Production Function JO - Financial Knowledge of Securities Analysis VL - 10 IS - 35 SP - 19 EP - 33 PY - 2017 DO - ER -