بررسي كارايي هزينه‌اي در نظام بانكي‌: مطالعه موردي بانك ملت‌

Investigating the Cost Efficiency in the Banking System: The Case of Bank Mellat

Banks have important roles in economy, such as mobilization of funds, intermediation, and utilization of fund and financial management. Even in developed economies, banks are on the center of financial and economic movements and they are the basis of monetary policies. In this research, we have investigated the cost-efficiency of banking systems (the case study of the Bank Mellat in the period 1991-2003). We have also estimated the cost-efficiency by using the parametric technique (econometrics) and Translog Stochastic Frontier Cost Function. The advantage of this method is that it divides inefficiency into two independent residuals including cost-inefficiency and stochastic factors. After estimating of the cost function and & finding the inefficiency factor, we realize that 10 percent of variance of § modelʹs errors is attributed to inefficiency factors. On the other hand, our research show that the total cost to minimum cost ration of the Bank Mellat is 1.07. It means that during this period, the Bank Mellat had only 7 percent inefficiency and the trend of inefficiency was stable during the whole period.