5 papers
Exploration enhances cooperation in the multi-agent communication system
Zhao Song, Chen Shen, Zhen Wang +1
Designing protocols enhancing cooperation for multi-agent systems remains a grand challenge. Cheap talk, defined as costless, non-binding communication before formal action, serves…
Evolutionary Dynamics of Reputation-Based Voluntary Prisoner's Dilemma Games
Chen Shen, Zhao Song, Xinyu Wang +4
Cooperation underlies many natural and artificial systems. While voluntary participation can sustain cooperation without informational assumptions, real interactions are rarely ano…
Complete strategy spaces reveal hidden pathways to cooperation
Zhao Song, Ndidi Bianca Ogbo, Xinyu Wang +3
Understanding how cooperation emerges and persists is a central challenge in evolutionary game theory. Existing models often rely on restricted, hand-picked strategy sets, which ca…
Non-participant externalities reshape the evolution of altruistic punishment
Zhao Song, Chen Shen, Valerio Capraro +1
While voluntary participation is a key mechanism that enables altruistic punishment to emerge, its explanatory power typically rests on the common assumption that non-participants…
Network reciprocity turns cheap talk into a force for cooperation
Zhao Song, Chen Shen, The Anh Han
Non-binding communication is common in daily life and crucial for fostering cooperation, even though it has no direct payoff consequences. However, despite robust empirical evidenc…