List of Articles CEO duality Open Access Article Abstract Page Full-Text 1 - Investigating the impact of moderating the CEO duality and institutional shareholders on the relationship between managerial ability and lack of transparency of company information Shokrollah Khajavi Mehran Jahandoust Marghoub soraya weysihesar Open Access Article Abstract Page Full-Text 2 - The Social role of Board of Directors on Accounting Conservatism of Companies Listed in Tehran Stock Exchange Mohammad Amin Hakimi Heydar Mohammadzadeh Salteh Open Access Article Abstract Page Full-Text 3 - Characteristics of the board of directors, Risk taking and Operational Risk of the company zakiyeh khosravanimehr