Khatereh Kargarpour - Department of Accounting, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Vali Khodadadi - Department of Accounting, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Alireza Jorjorzadeh - Department of Economics, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Allah Karam Salehi - Department of Accounting, Masjed-soleiman Branch, Islamic Azad University, Masjed-soleiman, Iran
Ahmad Kaab Omeir - Department of Accounting, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

In this study, the impact of corporate social responsibility (CSR ) disclosure on idiosyncratic risk has been investigated concerning three stakeholder theory, information asymmetry, and risk management. It also goes further and explores the impact of some corporate governance mechanisms such as ownership structure, board characteristics, and incentive contracts on this relationship. To achieve the research objectives, ۱۴۲ companies from Tehran Stock Exchange were selected through the systematic elimination method from ۲۰۱۰ through ۲۰۱۸ and the research hypotheses were tested using a combined data regression model with an integrated approach. The results show that CSR disclosure; by increasing transparency, reducing uncertainty, stakeholder satisfaction, and positive market signaling; reduces idiosyncratic risk. It was also found that the ownership concentration and managers’ remuneration by reducing CSR reporting lead to increased idiosyncratic risk, but government ownership, the duality of the CEO’s duties, the independence of the board of directors and the managers' equity decrease the corporate idiosyncratic risk by increasing CSR reporting. However, the effect of managers' remunerations and state ownership on the relationship between CSR reporting and corporate idiosyncratic risk was not confirmed at the ۹۵% confidence level. Overall, from a theoretical viewpoint, a good corporate governance system can improve the quality of CSR, thereby improving corporate social reputation and reducing corporate idiosyncratic risk.

Disclosure of CSR Information, Idiosyncratic Risk, Ownership Structure, Board Characteristics, Incentive Contracts