Paying for sanctions in social dilemmas: The effects of endowment asymmetry and accountability

The present research examines whether or not endowment asymmetry leads those with many endowments to contribute more than those with few endowments towards the public good (i.e., a first-order dilemma), but also towards the implementation of a sanctioning system (i.e., a second-order dilemma). In Experiment 1, we found that those with many endowments contributed more than those with few endowments in a public good dilemma without a sanctioning system present, whereas those with many endowments did not contribute more than those with few endowments toward the implementation of a sanctioning system. The latter effect, however, was eliminated when participants were accountable (i.e., when expectations that they would have to justify their decisions to others in the group were high). Experiment 2 showed that when participants were accountable, the contributions of those with many endowments (and not those with few endowments) toward the sanctioning system increased, but only when they perceived the group to be more self-evaluative in terms of morality (i.e., high-evaluation expectancy). Experiment 3 showed that this effect of evaluation expectancy only emerged when participants were accountable to the whole group rather than to only one group member.     

财富越多，责任越大：资金数量和来源对公共物品困境中第三方惩罚的影响

本研究探讨了公共物品困境中,初始资金的数量和来源如何影响第三方对成员贡献值的评价及惩罚。行为结果发现了“贵族责任效应”,即在同等贡献值条件下,相比于获得较少初始资金的成员,第三方会更重地惩罚获得较多初始资金的成员。当初始资金是随机分配而非通过个人努力获得时,该效应更强。在神经层面上,发现初始资金的数量和来源调节了第三方评估贡献值时所诱发的FRN和P3成分。其中FRN波幅与惩罚力度显著相关。本研究揭示了初始资金数量和来源如何调节第三方对成员贡献的评估及相关惩罚决策。