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Robust Research of Cluster Supply Chain Network

Author: LiuYanChu
Tutor: FuPeiHua
School: Zhejiang Technology and Business University
Course: Management Science and Engineering
Keywords: cluster supply chain network industry cluster complex network robust
CLC: F274
Type: Master's thesis
Year: 2011
Downloads: 185
Quote: 0
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Abstract

Industry cluster is a global general economic phenomenon, not only constitutes the world basic economic structure, but also represents the competitiveness of a country or region. Thirty years after Reform and Opening Up, Chinese economic structure had undergone profound changes while economic developed rapidly. The phenomenon of industrial cluster have became the typical characteristics of socialism economics in China, and played an important role in rapid economic development wave. However, the cluster effect of industrial cluster is a double-edged sword, not only bringing the cluster in the economic process of economic development but also exposing the problems of robustness when faced with risks. Supply chain management theory have been applied by scholars to study the industrial clusters for the development problem in industry cluster. This paper proposed the concept of Cluster Supply Chain Network, which based on the study of the coupling between industry cluster and supply chain.Cluster supply chain network is a supply chain network based on industry cluster, there are some core enterprises on the network whose interdependence and mutual interaction of strategy, plans, resources and information constitute a complex supply chain network through information flow, capital flow and logistics. All of these constitute the cluster supply chain network, which is one style of complex system. And one basic properties of the system is robustness, so this paper study the robustness problem of cluster supply chain network by complex network theory.This paper started off the complex characteristics of empirical data from Ohta-Ward in Tokyo, refered to the connection mechanism for complex network model, based on the real preferences of enterprises, and proposed an evolving dynamic model based on the preferential attachment of Path and degree(DPPA Model). Simulation using MATLAB programming model of the dynamic evolution of DPPA, and experimental data show:DPPA model can describe the scale-free and cluster characteristics of the real supply chain networks, and the network of power-law index and the average shortest path will not change much. When a=0 the cluster coefficient of network reached to 0.7366,while a=1 the cluster coefficient of network is 0.0793,and the cluster coefficient can be adjusted by the parameter a. This paper analyzed the relationship between robustness and uncertainty or invulnerability of supply chain network, and described the robustness of cluster supply chain network with invulnerability. Simulated the cluster supply chain network by DPPA model, and placed it under the Random-Remove and Selected-Remove deletion policies, measured and simulated the invulnerability of network by robustness. The experimental data shows:cluster supply chain network is fragile when faced with Selected-Remove, while robust when faced with Random-Remove.Based on the invulnerable performance of cluster supply chain network, this paper proposed two robust optimization schemes in the view of the supply chain. First is to protect the core enterprises and to simulate the feasibility and effect of this scheme on the Matlab in the view of complex network, and proposed an attack strategy about Core-Remove based on the important degree of node. The result of the imitate experience shows that protect the safety of the core enterprises can improve the robustness and invulnerability of cluster supply chain network. The second scheme is to make alliance between core enterprises. That is to make sure the network is linked all the core enterprises and propose a Wave-Remove attack strategy. The paper compared the robust performance of the before and the after alliance network that faced of the Mixture-Remove, and analyzed and simulated the optimizations of the scheme. The experimental data shows:the alliances of core enterprises can enhance the robustness of the network.

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