Research On Market Risk Assessment Of Oilfield Enterprise 's Material Supply Market Based On Complex Network Theory

With the changing environment of the market economy, the enterprises face more and more uncertainties, The existence of these uncertainties making enterprises in the development process all the time at risk, and the risks faced by showing the diversity and complexity. The enterprise to survive in this complex business environment and development, then it must establish risk awareness, effective management of risk. Since2006,when The State-owned Assets Supervision and Administration promulgated 《The central enterprise comprehensive risk management guidelines》,although the risk management gradually to the attention of enterprises in our country,but petroleum enterprise risk management is still in its infancy so far,the research ofpetroleum enterprise risk also pay more attention to oil prices.This article selects the oil supplies in the process of enterprise management risk analysis of market research,and the complex networks theory is applied to the risk assessment,establish a network model supplies market risk.The comprehensive evaluation index system is put forward, and apply it to the specific instance? Of X oil field enterprise supplies market risk were evaluated.Based on the oilfield enterprise supplies market risk as the research object, according to the theory of complex networks and related knowledge as the research tools and methods, problems of oilfield enterprises supplies market risk assessment is studied. In this paper, the research content including following several parts:First of all,we make a brief overview of the current research on the risk assessment methodologies and complex networks,At the same time,we involved in writing papers to the main theories are introduced.Secondly,based on the complex network theory and system thinking,we identification and analysis the main risk on the enterprise material supply market,and put forward the risk build rules of network model and the supplies market risk assessment principles which based on the theory of complex network.On the basis of this, we proposed risk assessment model and evaluation index based on node importance,and give the related calculation method and steps.At last,the risk assessment method that we established is applied to the specific instance, by means of X oilfield enterprises supplies market risk identification and analysis,using the evaluation index system and method that we established,we got the risk order.The empirical studies show that use this method to the evaluation of the risk assessment results than conform to the enterprise.