Mohammad Hassan jenani - Associate Professor of Accounting, Islamic Azad University, Boroujerd, Iran
Mahmood Hematfar - Associate Professor of Accounting, Islamic Azad University, Boroujerd, Iran
Farahnaz Moradi - MSC. Student, Accounting, Boroujerd Branch Islamic Azad University, Boroujerd, Iran&Auditor of supreme Audit court

Illiquidity remains one of the biggest challenges facing stock in Tehran securities market. .On this base, researcher seeks to investigate the role of disclosure and transparency on stock liquidity of۹۲ accepted corporations in Tehran securities market for period 8 years from ۱۳۸۵ to۱۳۹۲ in this research. The multivariate regression model is implemented to test research hypothesis by using the combined data and to measure the liquidity of a multidimensional model liquidity Liu ۲۰۰۶).Data analysis indicates that the disclosure and transparency affect on improvement of liquidity and as well as making illiquidity risk, as there is an inverse and significance relationship between the degree of disclosure and transparency with illiquidity risk. In addition to, results reveal that the corporations which have stronger disclosure and transparency, liquidity is higher than corporations that disclosure and transparency is weaker

Disclosure, transparency, liquidity, illiquidity risk