In view of the risk contagion in supply chain (SC) regarded as a complex and non-linear system and its severe threat to the entire SC system, it is very necessary for the research on risk contagion of SC. Based on the analysis of risk contagion process for SC and the theory of system dynamics, from the perspective of the risk management decision-making behavior of enterprise in SC, this paper creatively constructs the risk contagion model. Next, simulation for this model was carried out to explore the evolution and mechanism of SC risk contagion, and reveal the risk contagion effects of individual enterprises on SC system. The results show that enterprises with different risk resistances have different abilities to control risk contagion, and need to start risk control under different conditions. Thus, the longer the incubation period of the SC risk, the more harmful the risk contagion for the three types of enterprises. At the same time, enterprises with different risk resistance and risk control capabilities, the contagion effect of risk in the three types of enterprises are different, enterprise should develop different strategies for risk management decisions at different times. Moreover, for enterprises in SC, enhancing their risk immunity is far more important than simply emphasizing risk control technology. On some extent, the research findings can help risk decision-makers verify the feasibility of risk control strategies, also help enterprises to analyze the contagious risks being faced, and to take effective measures to avoid those problems. It can also provide some reference to scholars for the related study.
In order to enhance the efficiency of e-government performance and to promote the construction of serviceoriented government, researches on collaborative sharing model of socialized information in Yangtze River Delta Region is carried out from a collaborative perspective. This paper firstly proposed the collaborative sharing model of information based on the actuality that the government socialized information sharing is realized in Yangtze River Delta Region. Then the structure of the information collaborative sharing system is discussed. Finally, the collaborative sharing model of socialized information is studied from three perspectives: government unit, inter-government, and pure public information in Yangtze River Delta Region.
Co-entropy function was constructed based on dissipative structure, collaboration and entropy theory, while co-entropy of each management level in automotive sales service and the mathematical quantified assessment model of collaborative efficiency were built. In combination with the collaborative management activity of automotive sales service in an automotive sales company in Shanghai, the model and viewpoints presented here were applied and verified through empirical research.
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