环渤海港城协同发展对城市经济高质量增长的影响效应研究

Impacts of Port-City Synergy in Bohai Rim Port Cities on High-quality Urban Economic Growth

摘要

为探究港城协同发展对城市经济高质量增长的空间作用效果与非线性特征，论文基于2013—2022年环渤海主要港口城市的面板数据，采用空间计量模型和门槛模型分析了环渤海港城协同发展对城市经济高质量增长的空间溢出及门槛效应，并揭示了港城协同发展与城市经济高质量增长的时空演变规律。研究结果表明：1）津冀和山东地区港城协同水平、整个环渤海地区经济高质量发展水平均呈稳步上升趋势；2）整体上看，环渤海地区港城协同发展对所在城市及周边城市经济高质量增长均发挥促进作用；3）分区来看，港城协同发展对城市经济高质量增长的影响存在异质性，在津冀和山东地区表现为明显推动作用，而在辽宁地区则未产生积极影响；4）港城协同发展对城市经济高质量增长的影响存在门槛效应且呈边际效应递增特征。根据研究结论提出：应坚持系统观念，有序推进港城资源整合；应统筹发展港城布局，实现区域一体化发展；应利用好空间溢出效应，增强国家枢纽海港带头作用；应提升港城协同水平，推动城市高质量均衡发展。

Abstract

To examine the spatial effects and non-linear characteristics of port-city synergy on high-quality urban economic growth, this paper uses panel data for major port cities in the Bohai Rim from 2013 to 2022. Spatial econometric and threshold models are applied to analyze the spatial spillover and threshold effects of port-city synergy on high-quality economic growth, and to reveal the spatiotemporal evolution patterns of port-city synergy and high-quality economic growth. The results show that: 1) the level of port-city synergy in the Tianjin-Hebei and Shandong regions, as well as the level of high-quality economic development across all regions, exhibits a steady upward trend; 2) overall, port-city synergy in the Bohai Rim promotes high-quality economic growth in both the host city and surrounding cities; 3) by sub-region, the effect is heterogeneous—port-city synergy significantly promotes high-quality growth in the Tianjin-Hebei and Shandong regions, but does not generate a positive effect in Liaoning; and 4) the impact of port-city synergy on high-quality economic growth shows a threshold effect with increasing marginal returns. Based on these findings, the following recommendations are proposed: 1) adhere to a systems perspective and advance the orderly integration of port and city resources; 2) coordinate port-city spatial layout to achieve integrated regional development; 3) strengthen the leading role of national hub seaports and fully leverage spatial spillovers; and 4) enhance the level of port-city coordination to promote balanced, high-quality urban development.

关键词

环渤海地区 / 港城协同 / 空间溢出效应 / 门槛效应

Key words

Bohai Rim / port-city synergy / spatial spillover effect / threshold effect

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基金资助

渤海大学2025年海洋研究院开放课题项目(BDHYYZY2025017)

辽宁省教育厅基本科研项目