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Behavioral economists have shown that a sizable percentage of people are willing to pay real money to punish people who are taking from a common pot but not contributing to it. Just to insure that shirkers get what they deserve, we are prepared to make ourselves poorer.

行为经济学家已经表明，相当大比例的人愿意支付真金实银来惩罚那些从一个普通的罐子里拿走东西却没有贡献的人。为了确保逃避责任的人得到他们应得的，我们准备让自己变得更穷。

— James Surowiecki 索罗斯基