Investigate the Functional Appropriateness of Capital Ratios in Iranian Banks

In the same way that healthy and efficient banks can be effective in economic growth, their unhealthy and poor performance can also lead to financial and economic crises. The WFTC has been reviewing and proposing capital requirements since 1988 and, most importantly, observing the minimum capital adequacy of banks. Calculation of capital adequacy requires consideration of capital and risk weighted assets. Due to the significant difference between the methods of financing and the use of funds and the type of contracts and payloads in the Islamic bank with the conventional bank, it is necessary to calculate and determine the minimum capital adequacy for an Islamic bank after identifying and classifying various types of assets, liabilities and capital And the amount of risk associated with each of them, taking into account its specific financial features. Therefore, this research intends to assess the suitability of a set of the most important indicators of banking healthy indicators, namely, capital ratios. To this end, the ratio of capital ratios (tire1똪) to risk weighted assets with technical efficiency of Islamic banks of Iran is reviewed. After calculating the technical efficiency index of banks by CCR and BCC, eight panel data regression models for the period 2003-2015 were estimated for 21 banks and more than 190 statistical samples. The results show that all four capital indicators have a positive and significant effect on the technical efficiency of the banks. However, tire1 capital to total assets ratio is the best explanatory variable among capital ratios for banking performance.