Most studies investigating interindividual differences in the context of social decision making have focused on the decision maker. Considerably less empirical attention has been paid to interindividual differences in how recipients react both affectively and behaviorally. In two preregistered studies (total N = 667), we examined whether heightened levels of trait social anxiety are associated with higher levels of forecasted and experienced negative affective reactions in response to uneven resource allocations by an interaction partner in a dictator game and an ultimatum game as well as corresponding hypothetical and actual behavioral reactions. In accordance with our predictions, social anxiety levels correlated with negative affective reactions; these correlations were stronger the more unevenly the resources were allocated by the other individual. The observed effects remained robust when controlling for expectations and basic personality traits and across two different economic social decision-making tasks. This suggests that social anxiety level is an important contributor to interpersonal differences in affective reactions to another individual's uneven resource allocations.

中文翻译：

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特质社交焦虑对他人资源配置的情感和行为反应的影响

大多数调查社会决策背景下的个体差异的研究都集中在决策者身上。对于接受者在情感和行为上的反应方式的个体差异，人们对经验的关注要少得多。在两项预先注册的研究中（总共N = 667），我们检查了特质社交焦虑水平是否与更高水平的预测和经历的负面情感反应相关，以应对独裁者游戏和最后通牒游戏中互动伙伴的资源分配不均以及相应的假设和实际行为反应。根据我们的预测，社交焦虑水平与负面情感反应相关；另一个人分配的资源越不均衡，这些相关性就越强。在控制期望和基本人格特征以及跨越两个不同的经济社会决策任务时，观察到的效果仍然强劲。