基于多层网络的供应链金融建模与分析*

以多层网络理论为理论基础,将企业看成节点,企业间的关系看成连边,依据供应链金融真实的交易背景,建立供应链金融网络演化模型,试图为供应链金融提供新的研究方法。通过数学解析得到该供应链金融网络累积稳态平均度分布,利用计算机模拟对结果进行分析。结果表明多层网络建模得到的累积稳态平均度分布指数大于3,供应链金融网络呈无标度特性,供应链金融网络对供应链关系的依赖程度以及供应链金融网络新节点的连边数会改变网络的标度律大小,影响中枢节点的数量。

Modeling and analysis of supply chain finance based on multiplex networks*

We establish a supply chain finance multiplex network which based on the multiplex network theory and the transaction background of supply chain finance. We obtain the stationary average degree distribution of the supply chain finance network by mathematical analysis and analyze the results by computer simulation. The analytical result shows that the degree distribution index of the supply chain finance is greater than 3.The supply chain finance network has scale free characteristics and the scaling law is concerned with the number of edges of a new node of the supply chain finance network and the dependence on the first layer.