Research On Information Flow And Dynamics Of Supply Chains

With the advent of the information age, the competition between corporations has evolved into the competition on Supply Chain with the globalization and the intensification of competition. Dynamic complexity of supply chains is particularly important, and the transmission of information is the important factor which affects the supply chain system dynamic characteristics. In the process of information transmission, there will be different levels of information distortions, causing operational costs and increase the risk, resulting bullwhip effect which have seriously restricted the supply chain system.This paper discusses the information issue in Supply Chain Management (SCM) using the relevant control theory, especially analyzes how the phenomenon of distortion of information affects supply chain system, and analyzing the stability of supply chain system without information lead time.First, we analyze the transmission of information in the supply chain system in the role of information sharing on the impact of the supply chain, in particular discussed the information in the supply chain distortions - bullwhip effect. The control theory based on the supply chain system of two mathematical model, that is, the difference equation discrete systems model and state-space model, and then introduces quantitative methods of the bullwhip effect.This was followed by analysis of the supply chain dynamic nature when the information delay does not exist under the single-class supply chain system. We draw the parameters which lead to stability of the supply chain.Finally, with introduction of switched systems research methods, we establish a multi-class supply chain switched system model. Analysis shows that the switching law leads to the supply chain system in the complex dynamic behavior.