Explaining the role of evaluating pattern of corporate governance rating system on adjusted return on investment: Evidence from the Tehran Stock Exchange

The corporate governance system seeks to ensure that opportunistic behavior does not occur by reducing agency problems and potentially asymmetric information between different agents and stakeholders. The potential impact of corporate governance on corporate performance and value in Iran is a matter of concern it has received much attention in recent years from various executive, regulatory, and research groups. In this regard, the present study explores the role of corporate governance rating system model on the modified return on investment. The statistical population of this study included all companies listed in Tehran Stock Exchange from 1392 to 1396 and the sample was selected through systematic elimination of statistical population. According to the specified conditions, 119 companies were selected as the statistical sample of this research. The results showed that there is a direct and significant relationship between investment return adjusted for industry average and the general ranking mechanism of the components of the corporate governance system. There is a direct and significant relationship between the components of corporate governance and the average return on investment in terms of industry average.