On the (in)effectiveness of rewards in sustaining cooperation
通过公共池资源游戏实验，研究了成本高昂的奖励能否减少过度开采，发现净正向奖励比纯转移奖励更有效维持合作。
Abstract We study the effectiveness of costly rewards in mitigating excess extraction in a standard Common Pool Resource (CPR) game experiment. We implement two treatments. In the first, rewards are a pure transfer from one player to the other. In the second, the benefits of receiving a reward are higher than the cost of providing it. Referring to the latter as “net positive” rewards, we observe that these are used more frequently than transfer rewards, and that, unlike transfer rewards, they are effective in sustaining cooperation in the CPR game.