analysis of the effect of exim bank efficiency on non-oil export

Banks are considered as vital circulatory system of finance and financial institutions that collect assets from various sources and allocate them to sectors that need market liquidity. hence, banks are the vital arteries of any country. to evaluate the efficiency of the export development bank of iran, the cost efficiency of different branches was evaluated using estimation of stochastic frontier model (sfa). various inputs were fitted in the model and finally non-operating and operating incomes, as outputs, and overdue loan, default and exim bank capital, as bank’s inputs, were identified. accordingly, 27 branches of the export development bank of iran with continuous activity over the past three years were selected as a sample and their monthly cost efficiency was estimated. in the second step, the cost-effectiveness form of the bank was selected. the most common forms of stochastic frontier model (including cobb douglass and translog) were estimated using frontier 4 software and the optimal form of the cost efficiency function was selected using statistical tests. research results show that the nominal exchange rate and oil prices have a negative effect on gross national product and the bank's cost efficiency has a positive effect on non-oil exports. according to the research results, the bank's cost efficiency has increased in the period under review. it is suggested that in the medium term, the export development bank prioritizes the closure of loss-making branches, increasing the bank's capital, attracting deposits, and reducing fixed assets and operating costs to improve the bank's cost efficiency.