Hosein Arani - Ph.D Student in Accounting, Accounting Group Qazvin Branch, Islamic Azad University, Qazvin, Iran
Mohammad Reza Vatanparast - Assistant Prof Accounting Group, Faculty of Management and Accounting, Rasht Branch, Islamic Azad University, Rasht, Iran.
farzin rezaei - Assistant Prof Economics and Accounting Group, Faculty of Literature and Humanities, University of Guilan, Rasht, Iran.
sina kheradyar - Associate Prof Accounting Group, Faculty of Management and Accounting, Qazvin Branch, Islamic Azad University, Qazvin,Iran.

Commitment to social responsibility is the company's duty to achieve long-term goals and an important part of a sustainable society. This is not only related to the survival and sustainable development of the company but also to the expectations of the community and is also an important way to disclose non-financial information of companies. Disclosure of information can effectively reduce information asymmetry, improve the quality of internal control, and influence the trading behavior of investors. Therefore, the purpose of researching the transactional behavior of investors under the conditions of adherence to social responsibility and behavioral bias. For this purpose, the present study was conducted with ۹۰ sample companies in the period ۲۰۱۲-۲۰۱۸. The results illustrated that there is a negative, positive and significant relationship between adherence to social responsibility and short-sightedness and avoidance of bias and there is no significant effect with prominence bias. There is no significant relationship between adherence to social responsibility and transactional behavior, earning returns and risk-taking, and there is a significant relationship with risk aversion. Short-sighted behavioral bias has a minor mediating effect on the relationship between adherence to social responsibility and risk-averse transactional behavior. No mediating effect was found for other biases and information bumps.

Behavioral Biases, Investors ‘Trading Behavior, Corporate social responsibility