2026-10-12T04:00:27Z https://www.scidb.cn/oai

10.57760/sciencedb.42205 2026-07-08T20:34:51Z

2026-07-08 Evolution of structural resilience in China’s marine economic networks: Evidence from nationwide marine-related listed enterprises doi:10.57760/sciencedb.42205 en Strengthening the structural resilience of marine economic networks constitutes a core priority for China to advance land-sea coordination and mitigate external economic risks. Drawing on text mining of the 2011–2024 annual reports of marine-related listed firms, this paper constructs a nationwide city-level marine economic network, quantifies its structural resilience, and reveals its spatio-temporal evolutionary patterns. The key findings are as follows. (1) Supported by policy incentives, the network’s structural resilience rose rapidly from 2011 to 2020, followed by a phase of high-level volatility amid compound external pressures. Spatially, resilience follows a clear pattern: coastal regions lead, the Yangtze River Basin expands marine economic linkages, and inland zones are gradually integrated into marine industrial systems. High-resilience cities have expanded from the Bohai Rim and Yangtze River Delta to the Yangtze River Basin and inland central-western regions, while a growing north-south divide in resilience has emerged. (2) The network maintains a stable hierarchical architecture with prominent disassortative connections, which improves its shock absorption and adaptive capacity. Though nationwide factor transmission operates efficiently, persistent excessive regional agglomeration creates resilience vulnerabilities: closed industrial clusters lock regional specialization into rigid paths. (3) Spatial differentiation across nodes is stark: core hubs hold high node degrees, whereas peripheral cities lack independent cross-regional ties. The Middle Yangtze River and Pearl River Delta maintain tight intraregional cooperation, yet factor flows stagnate along northern coasts and in northwest inland regions. Over-agglomeration hinders industrial upgrading in the Bohai Rim and Pearl River Delta, while the Yangtze River Delta achieves superior risk resistance through extensive cross-regional linkages. This study provides actionable insights for land-sea integrated economies to incorporate inland enterprises into marine industrial chains and enhance the structural resilience of the national marine economic network. marine economy; network structural resilience; text mining; social network analysis; listed enterprises; China Yudi Yang PUBLIC https://creativecommons.org/licenses/by-nc-nd/4.0/ dataset Science Data Bank