For decades, the evolution of cooperation has piqued the interest of numerous academic disciplines such as game theory, economics, biology, and computer science. In this work, we demonstrate the emergence of a novel and effective resource exchange protocol formed by dropping and picking up resources in a foraging environment. This form of cooperation is made possible by the introduction of a campfire, which adds an extended period of congregation and downtime for agents to explore otherwise unlikely interactions. We find that the agents learn to avoid getting cheated by their exchange partners, but not always from a third party. We also observe the emergence of behavior analogous to tolerated theft, despite the lack of any punishment, combat, or larceny mechanism in the environment.

翻译：数十年来，合作演化问题一直激发着博弈论、经济学、生物学及计算机科学等多个学术领域的兴趣。本研究展示了一种在觅食环境中通过资源丢弃与拾取行为形成的全新高效资源交换协议。这种合作形式的实现得益于篝火机制的引入——该机制延长了智能体聚集与休整的时段，使其得以探索原本难以发生的交互行为。研究发现，智能体能够学会在与交换伙伴互动时避免受骗，但无法完全防范第三方介入。此外，尽管环境中不存在任何惩罚、战斗或掠夺机制，我们仍观察到类似于容忍偷窃行为的涌现。