长三角区域一体化对科技人才竞争力的门槛效应研究——基于经济与收入视角

基于竞争优势理论，解析区域一体化对科技人才竞争力提升的驱动机理，并运用核密度估计和非动态面板门槛回归模型，实证分析长三角一体化对科技人才竞争力的影响及经济与收入的门槛效应。研究发现：①长三角区域一体化水平显著提高，城市间一体化水平差异扩大，空间上集聚效应显著，形成“沿长江以南”和“环太湖”高水平一体化集聚带；②科技人才竞争力逐年提升，城市间科技人才竞争力水平差距逐渐缩小，多中心态势逐渐显现，但“马太效应”依旧显著；③长三角一体化对科技人才竞争力的影响存在显著的经济发展和收入水平门槛，影响系数分别呈现“U”型和倒“U”型变化趋势。

Research on the Threshold Effect of the Integration of the Yangtze River Delta on the Competitiveness of Scientific and Technological Talents:Based on Economic and Income Perspective

Based on the theory of competitive advantage, this article analyzes the driving mechanism of regional integration on the competitiveness of scientific and technological talents. On this basis, using kernel density estimation and non-dynamic panel threshold regression model, empirical analysis of the influence of the integration of the Yangtze River Delta on the competitiveness of scientific and technological talents and the economic and income threshold effects. The study found that: ①the level of regional integration in the Yangtze River Delta has increased significantly, the differences in the level of integration between cities have expanded, and the spatial agglomeration effect is significant, forming a high-level integrated agglomeration zone of "the area south of the Yangtze River" and "the area around Taihu Lake";②The competitiveness of scientific and technological talents has been increasing year by year, the gap in the level of competitiveness of scientific and technological talents between cities has gradually narrowed, and the multi-center situation has gradually emerged, but the "Matthew effect" is still significant;③The influence of the integration of the Yangtze River Delta on the competitiveness of scientific and technological talents has significant economic development and income level thresholds, and the influence coefficients respectively show a "U"-shaped and inverted "U"-shaped change trend.