兰西城市群“双核分离”结构探讨：区域经济一体化背景下民营企业的投资网络

周恒, 杨永春

Dual-core separation structure of the Lanzhou-Xining urban agglomeration: Investment network of private enterprises under the background of regional economic integration

ZHOU Heng, YANG Yongchun

图1 兰西城市群民营企业投资网络及其演化

Fig.1 Investment network of private enterprises in the Lanzhou-Xining urban agglomeration and its evolution