The effect of managerial overconfidence on firm value: evidence from companies listed in Tehran stock exchange


  • Mahmoud Lari Dashtbayaz
  • Shaban Mohammadi Department of Accounting, Quchan Branch, Payam noorUniversity, Quchan, Iran





Managerial Overconfidence, Firm Value, Financial Leverage, Firm Size.


Overconfidence, one of the most modern concepts of behavioral finance, both in financial theory and psychology is important. The effects of overconfidence managers Company's procedures, including accounting policies, hence it is important that overconfidence can be inaccurate and inappropriate policies on investment decisions, finance or accounting result and costs heavy impose on companies. Article overconfidence effect on the value of the company's review. The company's value as a dependent variable using Q-Tobin measured. Overconfidence variable as well as the independent variable with studies based on measurement methods and their impact on the performance of 50 companies listed in Tehran Stock Exchange during 2011 to 2015 using regression analysis do. The results of this study showed that overconfidence on both methods have an impact on firm value.


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