TY - JOUR T1 - Study the Relationship Between Capital Structure and Product Market Competition in the Tehran Stock Exchange AU - Khorshidi, Ali Mohamad AU - Kiamehr, Ali JO - International Business Management VL - 10 IS - 15 SP - 3136 EP - 3140 PY - 2016 DA - 2001/08/19 SN - 1993-5250 DO - ibm.2016.3136.3140 UR - https://makhillpublications.co/view-article.php?doi=ibm.2016.3136.3140 KW - herfindahl-hirschman KW -tobin’s Q KW -scope of product market competition KW -Capital structure KW -growth KW -leverage KW -firm size AB - The aim of this study was to investigate the relationship between capital structure is the extent of product market competition in the Tehran Stock Exchange. The 5-year study period the companies listed in Tehran Stock Exchange during 2010-2015 were studied. Between the 90 companies surveyed using multivariable linear regression analysis, the software 17 SPSS the product market competition under two criteria Tobin's Q and Herfindahl Hirschman was measured. The three indicators: growth, debt-size companies was considered as a control variable, the test results indicate that there is a significant relationship between capital structure Tobin's Q index but there is a significant relationship between capital structure and Hirschman index was not confirmed Herfindahl-Hirschman. ER -