摘要
基于局域世界复杂网络理论,研究金融物流下的存货质押动态监管演化网络。考虑节点企业比例及节点间异质连接等特性,根据局域世界的择优选择模型建模并进行模拟仿真。研究结果显示,存货质押动态监管网络度分布符合幂律行为特征,其平均路径长度随网络规模对数的增加而线性增加,网络簇系数与网络规模成反比。存货质押动态监管网络平均度随局域世界比例的增大而降低;局域世界比例较小时,指数分布更能拟合网络的度分布;而随着局域世界比例的增大,相对于指数分布,幂律分布更能拟合该网络的度分布情况。研究表明基于局域世界复杂网络的存货质押动态监管网络具有小世界特性及无标度特征,且网络平均度及度分布性质受到局域世界大小的影响。
In this paper, on the basis of the local world complex network theory, we studied the evolutionary network of the dynamic supervision of the inventory pledge businesses in logistics financing. Then considering the ratio of the nodal enterprises and the heterogeneity of the connection between the nodes, we built and modeled the local world optimal selection model, discussed the mathematical properties of the supervision network, and at the end, proved that the inventory pledge dynamic supervision network based on the local world complex network was a small world network and scale free, whose average evenness and distributiveness are under the influence of the scope of the local world.
出处
《物流技术》
北大核心
2014年第5期319-322,353,共5页
Logistics Technology
关键词
局域世界
复杂网络
质押监管
存货质押
local world
complex network
pledge supervision
inventory pledge
