Study On The Evolution Mechanism And Survivability Of Enterprise Financing Network

Enterprise financing network is a complex network which nodes and edges denotes the corporate accounts and cash flow relationship among them. There are many complex cash flow relationships among the enterprises, the important component part in economic system. How this complex relationship impacts the entire network and which kind of statistical properties will be shown on this basis? Studying the statistical properties of enterprise financing network will facilitate the research on survivability of enterprise financing network and may provide the theoretical suggestions to against financial or economic crises .Based on the econophysics and behavioral economics, the thesis constructed the oriented edge weighted enterprise financing network denoting enterprise accounts as nodes and cash flow relationships among them as edges using basic theory of complex network after decomposing and integrating the relationship of enterprise financing. Then the developing,evolution mechanism, network resilience and invulnerability of it are researched in this paper. The specific contents are as follow:Firstly, complex capital relationships among enterprises such as financing, investment and so on are appeared after analyzing the management activities of enterprise and the relationship among enterprise and other participants in the economic system. Afterwards, some basic features as the flux, direction and velocity of capital flows among the corporate accounts are decomposed. This paper constructs the presentation of enterprise financing network on the basis of that.Secondly, clarifying the expression of enterprise financing network, this thesis constructs and analyzes the developing and evolution model of enterprise financing network according to the fundamental idea of Economic Physics and Behavior Economics. When the size of enterprise financing network is enough large, the model shows the characteristics of scale-free, the degree of nodes in network follows power-law degree distribution for -2, whatever developing or decaying. In order to confirm the reliability of this conclusion, this thesis makes a simulation analysis adopting the simulated data provided by the financial networks simulation platform based on the Agent, and draws the coherent conclusion with the parsing of the model.Finally, this paper studies on the network resilience and survivability of enterprise financing network from point of simulation and theoretical, based on the scale-free characteristics. When studying the network resilience, this thesis adopts the simulated data provided by the financial networks simulation platform based on the Agent to discuses the feature of the average path length and the relative size of the maximal connected sub-graphs of enterprise financing network encountered the random hits and intended attacking. Then this thesis applying the theory of spreading dynamic study the survivability of enterprise financing network, and derives the critical value of financial crisis among enterprises in the enterprise financing network. To verify above theoretical results in actual life, this paper constructs the"Sanlu Group"evolutionary network and studies the developing and decaying of it.