“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9 2005—2018年京津冀城市群与中国地级市专利转移 注：图中节点大小与其度中心性成正比;节点颜色越偏向红色表示加权出度越大,越偏向蓝色表示加权出度越小;边的粗细与节点间专利转移数量成正比。

Fig. 9 Patent transfer between Beijing-Tianjin-Hebei urban agglomeration and prefecture-level cities of China in 2005-2018