مهدی قاسمی علی آبادی

Corporate governance of banks is one of the most important structures required by banks to maintain the health and stability of banks, which can play an important role in managing banks' risk. This paper examines the effect of corporate governance on liquidity risk management, credit risk management, and total bank risk management. We used board structure effectiveness, transparency, and responsibility as corporate governance indicators. The financial ratio approach is also used to measure risk management. The period under review was 2006-2018. In addition to corporate governance criteria, other explanatory variables affecting banks' risk management have also been used. This paper used the performing unit root, cointegration, and F-Limmer tests to ensure panel estimation. Given the impact of past banks' risk management on current risk management, this variable has also been modeled as an explanatory variable. For this reason, the GMM method has been used to estimate the models in question. Given the importance of bank size in corporate governance on bank risk management, Banks are divided into large and small groups, so the effect of corporate governance in large and small banks has also been investigated on bank risk management. The results show that compliance with corporate governance criteria positively affects banks' risk management. However, due to weak corporate governance in large banks, corporate governance in large banks hurts bank risk management.

Added over the period 2006-2018. We focused on different proxies of corporate governance indicators, such as the Directors' Effectiveness, the Transparency and the Disclosure, Responsibility. Basel Principles have been used to make corporate governance indicators and Stern & Stewart and Chew (1995) method have been used to make banking economic value added. We used the PCA method to choose important indicators. The results of PCA estimation identified ten important variables affecting banks' economic value added. Due to the importance of banks' age in creating economic value-added, banks are divided into two classes according to age. The GMM method is used to estimate the models. Eight models were designed to examine the impact of different corporate governance measures on the banking economic value added. The results indicated that corporate governance indicators were significant in explaining changes in the Iranian banking economic value added. The result also shows that according to the banks' age, the effectiveness of the board structure is greater than others. This illustrates the importance of board structure more than other criteria.

Good implementation of corporate governance principles is considered as an important component for stability and soundness of a financial institution. An extensive body of literature has reviewed the effects of corporate governance on the performance of corporations. The majority of these studies have found more corporate values for implementing the principles. Therefore, the assessment of compliance with corporate governance principles is a critical factor for external inspectors to ensure long-term sustainability of any economic organization. Based on these, this research aims to introduce a mechanism for assessing corporate governance in Iranian banks. This mechanism helps to calculate points for ranking of any banks compared to other banks and with regard to the compliance with four corporate governance principles: accountability, responsibility, transparency and fairness. To this end, and based on corporate governance principles, a set of measurements, elements and sub-indices have been introduced that some of them are estimated. The value domain for each of sub-indices is determined with respect to the published information by the bank. This paper has introduced 153 sub-indices, 17 elements and 3 measures that explain corporate governance. These are all valued and altogether in the form of a suitable model, make possible to calculate the Corporate Governance Index (CGI) in a usury-free bank.