9.In the laboratory games, the poorest players surrendered some of their own money tokens simply to penalize their richer counterparts, without any hope of personal gain.

• 在一些游戏实验中，仅仅为了惩罚富有的对手，最穷的玩家放弃了自己的一部分代币，而他们自己却不想从中获得任何个人收益。