Explain of the best capital structure with investigation of the relationa between financial leverage and some of functional variable

Maximize of capital structure returns and decision making with investigation of financial and functional variables is the two important subjects for management. In fact studying these variables give important signals to managers about the profitability of the firm, solvency and the financial strategy of the firm. In this research we attempt until with investigation of relation between financial leverage and some of financial and functional variable, designing a model for maximize the capital structure return. For reach to research goal we study the TSE̛ companies from 1381 to 1392, then we have chosen 100 sample and with the some of research method that consist of F- limer, Hausman and regression assumption test we examine the research hypothesis. Finally the results showing that there are considerable relation between financial leverage with Q/B ratio, profit quality, cash return of assets, net profit margin and growth rate of assets. Also there aren’t considerable relations with effective tax ratio and collateral value of assets.