Pages: 25-36

Abstract

Abstract: This article considered the effect of different variables in the form of 3 ratio of debt capital structure, the ratio of equity to total assets and the ratio of debt to equity based working capital and growth opportunities. This article from the purpose point of view is applied. The research is quasi-experimental research used a casual approach. The sample consists of all firms listed on Tehran Stock Exchange respectively. The study period is considered from 2009 to 2013. Using the sampling method to remove systematic, 90 companies formed the study population. Data research through data collection firms in the sample by reference to the financial statements, explanatory notes, weekly and monthly reports Dinasahm Stock Exchange and using the software, desert, ATMs do verify hypotheses were embargoed management and given the nature of information and data from past research that is based on actual data, the methods employed in this study, multivariate linear regression using data fusion panel. In this regard, used Excel and Views software’s. Results showed that, between the debt ratio and debt-to-equity ratio of working capital there is no significant relationship and the ratio of equity to total assets working capital between the total assets of the working capital there is a positive and significant relationship. Also between the depth ratio and debt ratio to equity ratio there is a significant negative relationship and between growth opportunities and between the ratio of equity and total assets on growth opportunity there is positive and significant relationship.