“双循环”新格局与京津冀高质量协同发展——基于价值链分工和要素流动视角
贺灿飞, 任卓然, 王文宇

"Dual circulation" and Beijing-Tianjin-Hebei high-quality coordinated development: From the division in the value chain and factor mobility perspective
HE Canfei, REN Zhuoran, WANG Wenyu
图11 2000—2019年京津冀对其他城市投资净事件数
Fig. 11 Beijing-Tianjin-Hebei urban agglomeration's net investment events to other cities in 2000-2019