Investigation the impact corporate governance structure on financial Performance and valuation in public firms

This study investigates the effect of corporate governance mechanisms (includes, ownership concentration, institutional investors, state ownership, managerial ownership, percentage of independent directors and duality of the CEO and chairman of the board of directors) on financial Performance and valuation in public firms. A sample of listed companies in Tehran Stock Exchange (TSE) for the period of  has been selected. Hypotheses have been tested using ordinary least square (OLS) with pooled data. The results show that, ownership concentration and state ownership have a positively and significantly impact on firm performance and valuation. Block institutional investor has a positive impact on valuation but have a negative impact on firm performance. Duality has a negative impact on valuation but have not impact on firm performance. Also, corporate governance mechanisms have a positively and significantly impact on firm performance and valuation.