北京市创新集聚的影响因素及其空间溢出效应
孙瑜康, 孙铁山, 席强敏

Influence factors and spillover effect of the innovation agglomeration in Beijing
Yukang SUN, Tieshan SUN, Qiangmin XI
表4 不同空间距离下创新活动的溢出效应
Tab. 4 Spillover effects of innovation activities in different distances
K=3 K=4 K=5 K=6 K=7 K=8
I 0.1493** 0.1724** 0.2022** 0.2093** 0.1906** 0.2021
U 0.0995* 0.0776* 0.0641 0.0773 0.0933 0.1396
Pro -0.0487* -0.0686** -0.0752** -0.0772** -0.0694* -0.0844*
Sci 0.1311* 0.1112 0.1694* 0.1548 0.1022 0.0364
Lar 0.0195 0.0341 0.0270 0.0348 0.0564 0.0670*
Tra 0.0478** 0.0453* 0.0392 0.0370 0.0353 0.0330
Ind -0.2556*** -0.2515 -0.2995** -0.2962 -0.2512 -0.2023