中国区域经济协同网络演变及成因分析——以2003—2017年中国40470组两两城市对为样本
刘莹, 李琳, 张喜艳

The evolution and forming reasons of the regional economic synergetic network in China: Based on the sample of Chinese 40470 city-city units from 2003 to 2017
LIU Ying, LI Lin, ZHANG Xiyan
图2 2003—2017年中国区域经济协同网络密度演变
Fig. 2 Density of China's regional economic synergetic network from 2003 to 2017