Investigating the intensity of correlation of performance and relative efficiency of firms on each other in order to improve management

Introduction
The purpose of this research is to investigate how to improve management performance in stock market companies. This research is correlational and the software used are Tops software and Eviews version 10. The statistical society consists of 12 banks and 64 companies in the stock market. The two main questions of this study are whether firms' performance affects each other to improve management. And whether business performance is correlated with each other to improve management. Five hypotheses are proposed in this research. For this research, the Rose model (2016) and the co-analysis method have been used. The data of this research is of a mixed type and is collected from the Stock Exchange website. The results of this research include those that correlate the performance of firms based on the profitability and leverage ratios with corporate performance based on corporate governance. Effective bank is solid in analyzing the data coverage with the leasing firm and the inefficient bank is strongly correlated with the investment venture. In the Topsis method, the top rated bank is strongly correlated with the leasing company, and the weaker bank with the leasing company has strongly correlated badges they gave.    
 
Method
  The BBC model is a nonlinear model and it is for evaluating of investigation unit that can be manipulated to linearize it in two ways: maximizing the numerator and keep fixed denominator that generates the BBC multiplier of axis input model or minimizes the denominator and keep fixed the numerator that is the generation of the BBC multiplier of axis output (Mehregan, 2012). In following, were shown the efficiency and data envelopment analysis and nonlinear and linear models of BBC.
 
 
 
 
 
Table4: Test the hypothesis 2                                                                                        




The dependent variable


Independent variable


Probability statistics t


Solidarity intensity




Efficiency of karafrin Bank


Investment  firm


0.00


0.93




Leasing firm


0.00


0.88




Brokerage firm


0.00


0.97




Amin Aftabin Company


0.04


0.76




Abyaneh Gostar Entrepreneur Company


0.04


0.76




Swap firm


0.02


0.80




 
                                                                                                                   
 
 
 
 
 
 
 
 
 
 
 
 
                                                                                                                          Source: Research findings by Fazeli Cebria et al (2018)
 
Conclusion
The main purpose of banks is customer-oriented, and customer satisfaction is effective in gaining trust and the financial cycle of the bank, and this satisfaction depends on improving the performance and efficiency of the banks. The result of hypothesis 1: the performance of corporations based on corporate governance affects the performance of subsidiary firms based on profitability and leverage ratios and can be effective in improving their performance. The result of hypothesis 2: the hypothesis with the probability of less than 5 percent was confirmed and the company of the investment type has the highest correlation. The result of hypothesis 3: in hypothesis, of course, the investment company of the non-bank bank showed the most solidarity with brokerage firms. The result of hypothesis 4: in hypothesis, the relationship between the strongest correlation between subsidiaries and affiliates with the highest performance among banks is measured by Topsis, and the top bank was introduced to the Topsis Mellat, which was believed to be less than 5% of this hypothesis. The result of hypothesis 5: in hypothesis, based on the Topsis method, the correlation between the performance of the Pasargad Bank and the strongest correlation between affiliated companies with a probability of less than 5% was confirmed.