Abstract
The present study aimed to investigate the effect of market structure and risk taking on the efficiency of banks accepted in Tehran Stock Exchange. This study was an applied research and all the banks accepted in Tehran Stock Exchange participated in the study and among them, 10 banks were selected as the sample of the study which was examined over the period of 5 years. To test the hypotheses, multivariate linear regression test was used. The current study had one main hypothesis and 4 sub-hypotheses. The findings revealed that the market structure and risk taking had significant positive relation with efficiency of banks accepted in Tehran Stock Exchange.
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