中国城市网络中心性的影响因素及形成机理——基于上市公司500强企业网络视角
盛科荣, 杨雨, 孙威

Determinants and mechanisms of degree centrality in the urban network in China: A study based on corporate networks of the largest 500 listed companies
Kerong SHENG, Yu YANG, Wei SUN
表3 基于网络基础设施分组的城市点度均值t检验结果
Tab.3 Test for difference in mean degree centrality of city groups based on network infrastructure
出度 中介度 入度
组1 组2 组1 组2 组1 组2
组内均值 25.745 343.021 26.744 1312.547 26.854 311.465
标准差 231.812 628.236 79.656 2547.203 37.031 243.185
观测值个数 247 19 247 19 247 19
组间差值 -317.276 -1285.803 -284.611
Test: 组1 > 组2 0.995 1.000 1.000
Test: 组 2 > 组1 0.005 0.000 0.000