政策视角下的粤港澳大湾区空间关联分析与协同发展政策机制优化

文章收集了428份由公共部门发布的粤港澳大湾区协同发展政策，根据政策主体拓扑关系测度城市间的大湾区协同政策供给强度，绘制基于协同发展政策关系的大湾区空间联系格局，结果发现：1）单向惠港惠澳的政策措施是当前主要的政策供给方向；2）政策供给高度集中于公共服务与产业领域；3）区县及以下层级和地方专业部门尚未充分进入大湾区协同发展政策网络；4）港、澳、广、深四大中心城市与大湾区其他主体间的政策关系与空间联系方式各异；5）大湾区城市间的政策联系在都市圈尺度内互动频密，跨都市圈政策联系相对松散。最后，提出以下建议：粤港澳大湾区可进一步加强邻域城市、邻域区县、专业部门间以及广深2个中心城市之间的双向政策联动，统筹对港、对澳政策，使得政策供给进一步适应大湾区的治理结构。

Spatial Connection Analysis and Coordinated Development Policy Mechanism Optimization in the Guangdong-Hong Kong-Macao Greater Bay Area from the Perspective of Policy

Public policy is an important support for the coordinated development of urban agglomeration. Since the construction of the Guangdong-Hong Kong-Macao Greater Bay Area has become a national strategy, a series of policies aimed at deepening regional cooperation and promoting regional coordinated development have been introduced. The quantitative measurement of policy can finely reflect the internal relationship structure of urban agglomeration governance. This study collected 428 regional coordinated development policies from the websites of the Guangdong-Hong Kong-Macao Greater Bay Area Leading Group Office and the relevant municipal governments. It topologized the relationship between policy subjects, measured the supply intensity of coordinated development policies, and analyzed the spatial connection based on policy relevance. The study found that: 1) The policy measures of one-way benefiting Hong Kong and Macao are the main policy supply direction at present, and in most cases, the policy feedback from Hong Kong and Macao is less than expected. 2) Policy supply is highly concentrated in the field of public services and industrial development, aiming to narrow the service gap between Hong Kong, Macao and the Mainland and attract high quality talents. 3) Districts and counties and local professional departments have not yet fully entered the coordinated development policy network of the Greater Bay Area, due to the lack of consultation platforms matching with their administrative levels. 4) The four central cities of Hong Kong, Macao, Guangzhou and Shenzhen have different policy relations and spatial connections with other subjects in the Greater Bay Area. It is worth noting that although Zhuhai is not regarded as one of the central cities in the Greater Bay Area, it takes the initiative to establish close policy cooperation with Macao and actively seeks to establish partnerships with Guangzhou, Shenzhen, Hong Kong. And these initiatives have enhanced Zhuhai's embeddedness and influence in the regional relationship network. 5) The policy linkages between cities in the Greater Bay Area are frequently interacted within the metropolitan area, and the policy linkages across metropolitan areas are relatively loose. Therefore, this paper suggests that the Guangdong-Hong Kong-Macao Greater Bay Area can further strengthen the two-way policy linkage between neighboring cities, neighboring districts and counties, professional departments and the two central cities of Guangzhou and Shenzhen, coordinate the policies towards Hong Kong and Macao, and make the policy supply further adapt to the governance structure of the Greater Bay Area. In short, this paper explores a method to measure and study the spatial connection of urban agglomeration based on coordinated development policies, which provides a research path for quantitatively indicating the correlation strength of coordinated development policies and the internal relationship structure of regional governance of urban agglomeration, provides technical support for policy formulation and optimization, and supports the fine governance of urban agglomeration.