Effective cross-group collaboration is crucial during crises, yet its evolving dynamics and impact on network effectiveness remain poorly understood. Here, the authors employ a topological framework based on zigzag persistence applied to city-scale datasets associated with pandemic waves in Shenzhen, China, and reveal that higher-order collaborations are a generic feature of effective crisis response, offering insights for optimizing collective action in emergencies.
- Anping Zhang
- Dexu Kong
- Marta C. González