While previous research on interpersonal decisions has focused on individual differences or situational determinants, in this paper, we looked at the interplay of situation and personality in decisions that are characterized by a conflict between self‐interest and joint welfare. In an online experiment, 185 participants made decisions about the allocation of their own work time and the work time of another anonymous participant. Agency and uncertainty were manipulated between subjects, and social value orientation as well as dispositional envy were assessed. Participants chose between an option that maximized participants' joint welfare and an option that maximized personal payoffs. The results pointed to an interaction between personality and situational forces: Uncertainty moderated the effect of social value orientation, and agency moderated the effect of envy on decisions. Taken together, the results provide evidence that the effect of individual differences in interpersonal decisions depends on the situation. Implications for team work are discussed in situations where a group potentially benefits disproportionally more from an individual's relatively higher effort than the individual who exerts the effort.

中文翻译：

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是出于个人利益还是共同的福利？人际关系中有关时间的决定中的人和情况因素

尽管先前关于人际决策的研究都集中在个体差异或情况决定因素上，但在本文中，我们着眼于以自我利益和共同福利之间的冲突为特征的决策中情况与人格的相互作用。在一个在线实验中，有185名参与者决定了自己的工作时间分配以及另一位匿名参与者的工作时间。在主体之间操纵代理和不确定性，并评估社会价值取向和性格嫉妒。参与者在最大化参与者共同福利的方案和最大化个人收益的方案之间进行选择。结果表明，人格与情境力量之间存在相互作用：不确定性减轻了社会价值取向的影响，代理减轻了嫉妒对决策的影响。两者合计，结果提供了证据，证明人际交往决策中个体差异的影响取决于情况。在团队可能从个人相对较高的努力中获得的收益比付出努力的个人更多的收益不成比例的情况下，讨论了团队合作的意义。