List of Articles تابع تولید مرزی تصادفی Open Access Article Abstract Page Full-Text 1 - Survey Economies of Scale Efficiency Changes in government and Private Banks by Using Stochastic Frontier Production Function Farid Sefati Taghi Torabi Kambiz hozhabr Kiani Open Access Article Abstract Page Full-Text 2 - Profitability and Efficiency of Poultry farms in Sistan Region امیرمحسن Khozeymeh محمد Kheiry وحید Dehbashi رضا Esfanjari Kenari