The Effect of Sukuk Market Development on the Capital Adequacy Ratio of Islamic Banks (Case Study of Iran)

Capital adequacy ratio is a key indicator in analyzing the situation of the bank, according to which it can be understood to what extent the bank's assets are invested in a suitable portfolio and in terms of risk and capital use in various assets. Among the factors that strengthen the capital adequacy ratio is the issuance of sukuk, which has received more attention, especially after Basel III (the third Basel Accord). For this purpose, the data of 15 selected banks and credit financial institutions accepted in the Tehran Stock Exchange during the period 2014-2020 has been used. Data analysis was performed using panel data method. Findings showed that the development of the Sukuk market has had a positive and significant effect on the capital adequacy ratio of banks, which means that with the increase in the development of the Sukuk market, banks have the opportunity to invest in high quality Sukuk. This reduces the share of risk-weighted assets (denominators of capital adequacy ratio) and thus the presence of a developed sukuk market helps banks to finance their operations at a very low cost and in a timely manner. In turn, will lead to strengthening the capital adequacy ratio of banks.