Ahmad Hoseini - Department of Accounting, Arak Branch, Islamic Azad University, Arak, Iran

This paper aims to investigate the effect of firm reporting quality, timeliness andquantity for disclosure and reliability of financial reports on the reaction of stockprice delay. Statistical population includes ۱۱۱ active firms in Tehran stock exchangeduring ۲۰۱۰-۲۰۱۴ using Cochrane method with the confidence level of۹۵%. Totally, they were ۵۵۵ firms-years. In this paper, linear and nonlinear regressiontests have been used to investigate the research hypotheses, analyze thedata and examine the hypotheses using Eviews software. Results indicated that thescore of disclosure quality, timeliness and reliability affected the stock price delay;also, the mentioned effects were confirmed in the firms with high risk of lackof funds.

Firm reporting quality, disclosure timeliness, financialreports reliability