Are religious believers more prosocial than other people? In a trust game field experiment with 774 subjects in Haiti, we elicit willingness to pay to play in the presence of religious images, and argue that this can be interpreted as a measure of the strength of religiosity. More religious individuals trust others more and reciprocate more than others, with effect sizes between 14% and 21% of mean behaviour depending on the measure. They do not reciprocate more in the presence of religious images than without them, nor towards members of the same denomination as themselves. The results support the view that religious affiliation is correlated with intrinsic trustworthiness. We show that lab behaviour correlates with intuitive measures of religiosity outside the lab and with participation in borrowing and lending networks.

中文翻译：

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相信上帝的形象：海地宗教与互惠之间的联系

宗教信徒比其他人更亲社会吗？在海地对774名受试者进行的信任游戏野外实验中，我们引出了愿意在存在宗教图像的情况下进行游戏的意愿，并认为这可以解释为衡量宗教信仰强度的一种方法。宗教信徒越多，对他人的信任就越多，与他人的交往也就越多，根据衡量标准，平均行为的影响幅度在14％到21％之间。在没有宗教形象的情况下，他们没有比没有宗教意义时更多的回报，也没有朝着与自己相同教派的成员进行交流。结果支持这样一种观点，即宗教信仰与内在的信任度相关。我们表明，实验室行为与实验室外宗教信仰的直观测度以及参与借贷网络的行为有关。