Mostafa Hosseinzadeh - Department of Accounting, Islamic Azad University, Boroujerd Branch, Boroujerd, Iran
Saeid Valadbeigi - Department of Accounting, Sama Technical and Vocational Training College, Islamic Azad University, Rudehen Branch, Rudehen, Iran
Amin Azizi - Department of Accounting, Islamic Azad University, Boroujerd Branch, Boroujerd, Iran
Sanam Bakhtiarnezhad - Department of Accounting, Sama Technical and Vocational Training College, Islamic Azad University, Damavand Branch, Damavand, Iran

The main purpose of this research is to study the relationship between capital structure and firms’ economic performance separated by ownership. This study measures capital structure by company’s total liabilities and total assets; and economic performance and ownership structure are weighted by the two dimensions of institutional and corporate ownerships. Research used systematic elimination sampling method. Research statistical population included listed companies in Tehran Stock Exchange (414 companies) within 2009 to 2012. Sample volume determined as 88 companies. Research objectives are applied and it is considered as a correlation study. Research data collected through using stock exchange software. Further, collected data analyzed using SPSS software. The research used descriptive and inferential statistics (Spearman test). Results of research hypotheses show that economic performance in companies with institutional ownership is inversely related to capital structure; whereas, in non institutional economic ownership (corporate ownership) no correlation is seen with capital structure.

Capital structure, institutional ownership, corporate ownership, economic performance