Investigating the Effect of Product Market Competition on Financial Performance by Moderating Role of Information Disclosure Quality: The Companies Listed in Tehran Stock Exchange

The purpose of this research is to investigate the effect of product market competition on financial performance with moderating role of information disclosure quality. In this regard, disclosed information, as a control tool, persuades managers to move toward stockholders' interests and firms' competitive objectives, in today's competitive environment. For this purpose, companies listed in Tehran Stock Exchange during the period from 2010 to 2015 were considered. In this research, two variables of return on assets and return on equity were considered as indicators of financial performance. The Herfindahl-Hirschman index (HHI) is used to measure product market competition. The results show that product market competition has a significant effect on financial performance. Also, the results indicate that the information disclosure quality has moderated the relationship between product market competition and financial performance, so that with the introduction of the moderating variable the effect of independent variable increases on the dependent variable.