List of Articles مقیاس اقتصادی Open Access Article Abstract Page Full-Text 1 - The most productivity scale of the return on working capital versus the realization of demand Mahnaz Ahadzadeh Namin Elahe Khamseh Open Access Article Abstract Page Full-Text 2 - Survey Economies of Scale Efficiency Changes in government and Private Banks by Using Stochastic Frontier Production Function Farid Sefati Taghi Torabi Kambiz hozhabr Kiani