Impact of the Firm Features on the Capital Structure in the Enterprises
The purpose of this study is to investigate the effect of firm management features on the capital structure and tax administration of the companies listed in the Tehran Stock Exchange. For that aim, by differentiating the existing companies in the research sample in terms of life cycle, and using the Dickinson cash flow mark model, the relationship between variables, board size, board composition, duality of the CEO duties, and auditor size were examined. The research method is descriptive-analytic and the statistical population of the study involves all companies listed in the Tehran Stock Exchange from 2013 to 2017 for 5 years, the research sample was selected based on the systematic elimination and screening and in as many as 142 companies. Data and financial statements information relating to the companies listed in the Tehran Stock Exchange were extracted from stock databases, time series statistics, etc. At the end, the Eviews and Spss software programs were used to analyze the data. Regression results from surveying the sample companies indicate that there is no significant relationship between the size of board of directors and the tax administration. In other words, in Iran, the board size does not affect tax administration. Also, there is a negative and significant relationship between the board composition and the effective tax rate. Other findings of the research indicate a positive and significant relationship between the effective tax rate and the duality of the CEO duties. Also, there is a negative and significant relationship between the size of the audit firm and the tax administration.