Crabtree, Stefani, Colin Wren, Avinash Dixit, and Simon Levin. (2024) 2024. “Influential Individuals Can Promote Prosocial Practices in Heterogeneous Societies: A Mathematical and Agent-Based Model.”. PNAS Nexus 3 (7): pgae224. doi:10.1093/pnasnexus/pgae224.