【摘要】 共享发展是高质量发展的重要要求，粤港澳大湾区共享发展对带动周边地区协同发展、探索区域融合新路径具有重要战略意义。利用2010—2023年大湾区及周边地区城市的面板数据，构建包含收敛趋同效应和空间溢出效应的空间计量模型，以研究大湾区对周边地区共享发展的溢出效应。研究发现，区域共享发展呈现显著的收敛趋同效应，形成“低水平地区追赶高水平地区”的趋同态势，并且大湾区通过空间溢出效应显著带动了周边地区共享发展水平的提升。机制分析发现，大湾区对周边地区共享发展的空间溢出效应存在经济、社会、文化和生态多维度的传导路径，形成了“技术扩散—公共服务协同—文化资源整合—生态共治”立体传导网络。异质性分析表明，大湾区对周边城市共享发展的溢出效应随着地理距离阈值的提高呈现先升后降的态势，低于或等于250公里时，溢出效应随阈值的提高而增强；此外，对口帮扶城市相较于非对口帮扶城市的空间溢出系数更高，并且当帮扶关系进入稳定持续阶段后，溢出效应较帮扶初期阶段呈现更显著的强化态势。研究结论可为实现大湾区与周边地区协同发展新格局提供参考建议。更多还原

【Abstract】 Shared development is an important requirement for high-quality development.The shared development of the Guangdong-Hong Kong-Macao Greater Bay Area(GBA) holds important strategic significance for driving the coordinated development of the surrounding regions and exploring new paths of regional integration.Using panel data of cities in the GBA and its surrounding areas from 2010 to 2023, this study constructed a spatial econometric model incorporating convergence effects and spatial spillover effects to investigate the spillover effect of the GBA on the shared development of the surrounding regions.The findings reveal that regional shared development exhibits a significant convergence effect, forming a convergence trend of “low-level regions catching up with high-level regions”.Moreover, the GBA has significantly promoted the improvement of shared development levels in the surrounding regions through spatial spillover effects.Mechanism analysis shows that the spatial spillover effect of the GBA on the shared development of the surrounding regions operates through multi-dimensional transmission paths in the economic, social, cultural, and ecological fields, forming a multi-dimensional transmission network characterized by “technology diffusion—public service coordination—cultural resource integration—ecological co-governance”.Heterogeneity analysis indicates that the spillover effect of the GBA on the shared development of the surrounding cities increases initially and then decreases as the geographical distance threshold increases.When the distance is less than or equal to 250 kilometers, the spillover effect strengthens with the increase of the threshold.Additionally, the spatial spillover coefficient of paired-assistance cities is higher than that of non-paired-assistance cities, and when the assistance relationship enters a stable and sustained stage, the spillover effect shows a more significant enhancement compared to the initial stage of assistance.The research conclusions provide reference suggestions for realizing a new pattern of coordinated development between the GBA and its surrounding regions.更多还原