The Effect of Degree of Competition and Capital Requirements on Iranian Bank's Risk-Taking

Using Blundell and Bond generalized method of moments (GMM) system estimator, this study investigates the effect of degree of competition and capital requirements on the risk-taking of the Iranian banking system over the period 1385-1394. The results suggest that the first lag of degree of competition in the deposit market has a significant and positive effect on bank's risk-taking. But the increase in the degree of competition in the loan market, leads to bank's risk-taking reduction. Regarding the effect of capital to asset ratio on bank`s risk-taking, the results show a significant and negative effect on bank's risk-taking. Moreover, the results suggest that the increase in capital per unit of assets leads to reduction in bank's profitability. A decrease in bank's profitability due to increase in capital to asset ratio, leads to capital requirements inefficiency for mitigating bank's risk-taking.