Rating rules in the helping game: An axiomatic approach
研究了玩家反复决定是否帮助他人的帮助游戏，提出公理要求评级对玩家决策有响应且单调变化，发现只有四种规则满足这些公理，并展示了单一评级如何编码两种视角。
We examine a stylised helping game in which players recurrently decide whether to help others at personal cost and are assigned binary ratings of “helpfulness” based on previous choices. We propose axioms requiring that ratings are responsive to players’ decisions and change monotonically with respect to helping given or withheld. Only four rules satisfy these axioms: two standing rules and two versions of a form of binary image scoring. These results show how a single rating can encode both the “desert” perspective, linking worthiness to kindness and deservingness, and the “club” perspective, relating worthiness to a cooperative club’s membership.