TITLE:
Inter-Organizational Collaboration under Cascading Typhoon Risks: Evidence from the Yangtze River Delta, China
AUTHORS:
Ying Liu, Jing Ni
KEYWORDS:
Typhoon Disasters, Cascading Effects, Inter-Organizational Collaboration, Complex Networks, Regional Emergency Governance
JOURNAL NAME:
Open Journal of Social Sciences,
Vol.14 No.7,
July
23,
2026
ABSTRACT: Under the cascading effects of typhoon disasters, it is difficult for a single region or department to cope independently with complex risks, making cross-regional emergency collaboration a practical need for regional governance. However, existing studies have paid insufficient attention to the joint analysis of typhoon cascading-risk propagation structures and organizational collaboration relationships. Based on historical typhoon event data, this study constructs a typhoon disaster cascading-effect network for the Yangtze River Delta and identifies key nodes, disturbance impacts, and coverage overlap relationships in the disaster propagation process. It also constructs a cross-regional emergency organizational collaboration network and uses the QAP method to analyze the effects of spatial relationships, hierarchical relationships, system affiliation, and economic disparity on the formation of collaborative relationships. The results show that the cascading propagation of typhoon disasters presents clear centralization characteristics, with risks mainly diffusing through nodes related to critical infrastructure such as transportation, water conservancy, power, and communications. At the level of organizational collaboration, cross-provincial ties and system affiliation significantly promote the formation of collaborative relationships, while within-province vertical relationships show a relatively weaker tendency to form collaborative ties in contexts with larger economic disparities. This study provides empirical evidence for understanding risk propagation characteristics and organizational collaboration conditions in regional emergency response under cascading typhoon risks.