Data Sheet 1_Symbiotic resilience in port governance: a tripartite dynamic assessment framework.zip

Existing frameworks capture operational efficiency and infrastructure capacity, yet they are static and one-dimensional, and they miss the dynamic co-evolutionary processes among governance stakeholders. We propose the Stakeholder Symbiotic Resilience Index (SSRI), a composite metric for evaluating the health of tripartite stakeholder relationships in port governance.

Drawing on stakeholder salience theory, we treat three groups (Port Authority, Port Enterprises, and Local Community) as co-evolving actors within a Lotka–Volterra framework. Methodologically, we advance the model from numerical simulation to data-driven empirical analysis using 2015–2024 data from Qingdao Port. The estimated interaction coefficients point to an asymmetric configuration: the Port Authority supports enterprises, enterprises contribute strongly to the community, and community development in turn strengthens the Authority, while Enterprise-to-Authority influence is negative.