基于復(fù)雜網(wǎng)絡(luò)理論的供應(yīng)鏈違約風(fēng)險(xiǎn)傳染及控制研究
[Abstract]:As we all know, Chinese society is a complicated relation society. Nowadays, when the national economic system is becoming more and more perfect and the global economy is becoming more prominent, the stability of the global economy is affected by all kinds of interpersonal relations, enterprise relations, alliance relations and even national relations. How do you study these relationships? Of course, there are a lot of perspectives. Lin Yutang's works depict the relationship, and Huang Guoguang, as a psychologist, portrays it from the perspective of the world and the network of relationships. After more than 70 years' research on the history of human social development, foreign sociologists with rigorous figures begin with the social structure and reveal the phenomenon of social discipline through quantitative research. The significance of the complex network theory lies in the quantitative analysis of the statistical characteristics in the network, so as to provide a quantitative solution for the relevant middle-level empirical proposition test and the construction of the network theory, and even to build a bridge between "macro and micro". On the other hand, with the increase of natural disasters and emergencies in the world, the financial crisis broke out in various countries and regions, the difficult transaction information of supply and demand market and the complexity of supply chain structure make the stability of supply chain more fragile. China, as a newly rising large economy, although the growth rate of its national economy is still at a relatively high level compared with that of other countries, but the market maturity is still relatively high. Compared with the developed countries, there is still a big gap in the development of industries and the construction of social credit environment. As a member of supply chain network, the structure and internal research of supply chain network in China will be different from that of western complex network theory. When enterprises are faced with the contagion of superior default risk and those connected with each other in the network, the countermeasures will become more complicated. Therefore, through a comprehensive understanding of the supply chain network structure and statistical characteristics, the establishment of a related default risk contagion model can make up for some defects in the research of supply chain network default risk contagion mechanism. Microscopically, it helps supply chain enterprises to formulate risk control strategies. In this paper, based on the existing literature, in order to quantitatively analyze the impact of the outbreak of default risk of core manufacturers on the network of distributors, based on the rumor dissemination model, the related factors of default are introduced. The risk contagion model of secondary supply chain network is constructed, and the interactive contagion of default risk caused by the intensity of association relationship of each member enterprise in the network structure of distributor is studied systematically. In this paper, the characteristics of complex network structure are analyzed in detail, and the relationship weight of supply chain network enterprises is evaluated by AHP. These correlations are used as quantitative research factors of network node degree. On this basis, using the SHKR rumor propagation model, taking the manufacturer-distributor secondary supply chain network as the research object, constructs the manufacturer-distributor secondary supply chain default risk contagion model, and finds that the average degree of the distributor network is larger. The higher the probability of connection between nodes, the greater the impact of default risk outbreak of the core manufacturer, the longer the spreading time, and the higher the jump to the lower level. Then by the supply chain network as a whole, the research scope is reduced to the supply chain enterprise default risk perspective change and risk control strategy research, through the model construction and simulation analysis, in order to effectively reduce the domestic supply chain default risk damage. Supply chain node enterprises must strengthen their initial risk identification, assessment and early warning capabilities, and carefully formulate supply chain partner selection schemes.
【學(xué)位授予單位】:長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2016
【分類號(hào)】:F274
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