Research On Financial Market Risk Measurement Based On Complex Network Theory

This paper analyzes the financial market network,China stock market network and the worldwide stock market network.The methods are include coefficient analysis,clustering anal-ysis and network analysis.All three networks have stratified characteristics,and significant market trends and economic events will accumulate strong correlation in the nodes.The clus-tering characteristics,in addition to being affected by the correlation,are also directly affected by the factors of policy and international communication.The connectedness of the three types of networks will change accordingly with the state of economic development.When the lev-el of connectivity is higher than that of fundamental development,it will slowly accumulate into systemic risk.The financial market network fluctuates between homogeneity and hetero-geneity,from a overall point of view,the financial network is homogeneous.China stock market network has obvious characteristics of heterogeneity.The worldwide stock market network is of heterogeneity.When a country formulates its macroeconomic strategy,it is necessary to consider the topological characteristics of its own market,and to position the state of resource allocation and development of the world financial market.