我国双向投资耦合协调的时空特征及其影响因素

On Spatial and Temporal Characteristics of Two-Way Investment Coupling Coordination and Its Influencing Factors

基于我国30个省2008—2021年双向投资存量数据,测度了双向投资耦合协调值以及分析了耦合协调的时空特征,并构建面板Tobit模型考察了推动双向投资协调发展的影响因素。结果表明:双向投资耦合协调值呈逐年上升趋势,在空间上呈现“东部沿海高内陆低”的分布特征;经济规模、对外开放度、技术创新等因素对双向投资协调发展具有显著的促进作用,交通基础设施因素则为负向影响,技术创新和产业结构等因素在“一带一路”沿线重点省份和非重点省份样本中存在明显的异质性影响。

Based on the two-way investment stock data of 30 provinces in our country from 2008 to 2021,the coupled coordination value of two-way investment is measured and the spatio-temporal characteristics of the coupled coordination are analyzed,and the panel Tobit model is constructed to study the influencing factors to promote the coordinated development of two-way investment.The results show that the coupling coordination value of two-way investment shows an increasing trend year by year,showing the spatial distribution characteristics of"high in the east coast and low in the interior".Economic scale,openness to the outside world,technological innovation and other factors have a significant role in promoting the coordinated development of two-way investment,while transport infrastructure factors have a negative impact,and technological innovation,industrial structure and other factors in the samples divided according to whether they belong to the key provinces along the"Belt and Road"have significant differences.