Research On Chinese Government 's Control Over Stock Market Based On Complex Network Theory

ncreasingly integrated global economy at the present stage, on the basis of the real economy continue to grow and develop on the capital markets or financial market has become more and more relevant, and financial instruments and services for the real economy more and more, increasingly the more complex, the stock market is the most important financial markets inside the market, the stock market and the stock market is the largest and most important market, so the stability of the stock market has become the most important influence on the stability of the entire country’s economic development one of the factors, but with the size of the stock market continues to grow, the number of companies listed stocks growing, government regulation of the stock market has become increasingly powerless, the government target on the stock market macro-control more difficult to achieve, so the government based on the stock market have a correct perception of the macro, and further found that the internal structure of the stock market has a micro level, that is, how to further reveal the complex structure of the network inside stock market micro-level, and dig out useful information for the government to be more effective management and control the stock market, to better promote the growth of the real economy, in urgent theoretical and practical significance.In the study of this article follow the stock market inside the micro-level structure, we use complex network theory general methods of the study of complex systems, to construct stock market complexity associated with network models, using MATLAB software programming to perform quantitative analysis on the appropriate model, correlation research work as follows:First,Shanghai and Shenzhen 300 Index constituent stocks traded shares for the study, take stock closing price in November 2014 from 20 to 12 June 2015 and 12 June 2015 to 30 September 2015 in two stages to analyze the stock continued to rise and stock prices plummeted yield correlation stage constructed Chinese equity-linked network, and analyze the stock of the two time periods associated network has a complex network characteristics.Second, In equity-linked network of the two time periods were carried out community structure divided specific threshold based on analysis of community structure characteristics and the corresponding share of equity-linked short time two network components, revealing the stock market inside the micro level complex structure and characteristics of the network.Third, Analysis of the actual situation on the stock market effect the government’s control, and then it has a complex structure of the network, the author proposed to the Government a corresponding policy recommendations based on the theory of complex network control.