海南自贸港产业升级的时空异质性及其驱动机理

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中图分类号］F269.24 [文献标识码］A [文章编号]1008-1763（2025）06-0072-10

Spatiotemporal Heterogeneity and Its Driving Mechanisms of Industrial Upgrading in Hainan Free Trade Port

LUO Zhou

（1.International Business School，Hainan University，Haikou 57O228，China; 2.School of Management，Qiongtai Normal University，Haikou 571l27，China）

Abstract：Based on the panel data of all provinces in China and 18 cities/counties in Hainan from 2012 to 2023，we evaluate the phased achievements of industrial upgrading in Hainan Free Trade Port with the assistance of the SDID method.Furthermore，we characterize the spatio-temporal heterogeneity of Hainan's industrial upgrading by employing the Dagum Gini coeficient decomposition and kernel density estimation. Lastly，we uncover its driving mechanisms using the Random Forest model. The results show that： firstly， the construction of the Free Trade Port has had a positive impact on Hainan'ndustrial upgrading，with the policy effect exhibiting an expanding trend. Secondly，Hainan's industrial upgrading demonstrates a spatial distribution characterized by higher levels in the east and lower levels in the west，with“highlands”along the coast and“lowlands”in the central region，and the overalldegree of dispersion is on an upward trend. Thirdly，economic development level，infrastructure，and the degree of openness are the key factors driving the differentiation of Hainan's industrial upgrading，and the main sources of spatio-temporal heterogeneity arise from the marginal efects of these factors and the differences in the absorption and application efficiency of elements among various cities and counties in Hainan. Based on this，it is necessary to focus on key areas to promote integrated institutional innovation;leverage regional advantages to form diferentiated division of labor，and improve the linkage mechanism and strengthen regional collaboration and cooperation.

Key words： Hainan Free Trade Port; industrial upgrading; spatiotemporal heterogeneity;driving mechanisms

一 引言

在世界百年未有之大变局下，中国特色自由贸易港建设是彰显我国全面深化改革与扩大开放、推进经济全球化决心的重大战略决策。（剩余11966字）