Abstract :
This paper aims to investigate the effect of firm reporting quality, timeliness and
quantity for disclosure and reliability of financial reports on the reaction of stock
price delay. Statistical population includes 111 active firms in Tehran stock exchange
during 2010-2014 using Cochrane method with the confidence level of
95%. Totally, they were 555 firms-years. In this paper, linear and nonlinear regression
tests have been used to investigate the research hypotheses, analyze the
data and examine the hypotheses using Eviews software. Results indicated that the
score of disclosure quality, timeliness and reliability affected the stock price delay;
also, the mentioned effects were confirmed in the firms with high risk of lack
of funds.