Relationship between the capital structure and competitive powero of TSE Listed companies

In this paper, we have examined the relationship between capital structure and competitive power over a 7- period in 36 companies in Tehran Stock Exchange. We have founded evidence that capital structure and competitive power have a significant positive relation. there is a negative relation between capital structure and profitability ratio but sale growth and firm size have a positive relation with capital structure in study sample. Also, sale growth and firm size have a positive relation with competitive power but we have not seen any relation between profitability ratio and competitive power . Fixed asset ratio has a negative relation with competitive power but has not any relation with capital structure.