Soghra Fasihi - Ph.D. of Accounting, Faculty of Social Science and Economics, Al Zahra University, Tehran, Iran. ۲. Faculty member of Accounting, Department of Management, Economics and Accounting, Payame Noor University, Tehran, Iran.
Seyed Ali Hosseini - Assistant Prof., Department of Accounting, Faculty of Social Science and Economics, Alzahra University, Tehran, Iran.

Investors pay special attention to risk criteria in assessing the status of companies. So companies can help attract investment by disclosing important risks. So, it is expected that risk disclosure through decreasing information asymmetric between managers and investors can reduce uncertainty and lead to an increase in the companies' value. This paper studies the impact of risk disclosure on firm value in listed companies on the Tehran Stock Exchange. We used Miihkinen (۲۰۱۲) model to calculate our risk disclosure index. Firm Value is calculated through Tobin's Q variable. The statistical population of this study is all companies listed on the Tehran Stock Exchange from ۲۰۱۰ to ۲۰۱۶. The final selected companies are ۵۹. We find that corporate risk disclosure has significantly and positively impact on firm value. That is, as the disclosure of risk increases, so does the value of the company.

Firm Value, Information Asymmetric, Risk disclosure