Dimensions of donation preferences: the structure of peer and income effects
通过实验研究捐赠动机，发现捐赠随同伴和过往捐赠者增加而增加，揭示人们对捐赠社会规范的信念存在异质性，并利用偏好维度间的相关性提出简单策略使捐赠增加约30%。
Abstract Charitable donations provide positive externalities and can potentially be increased with an understanding of donor preferences. We obtain a uniquely comprehensive characterization of donation motives using an experiment that varies treatments between and within subjects. Donations are increasing in peers’ donations and past subjects’ donations. These and other results suggest a model of heterogeneous beliefs about the social norm for giving. Estimation of such a model reveals substantial heterogeneity in subjects’ beliefs about and adherence to the norm. A simple fundraising strategy increases donations by an estimated 30% by exploiting previously unstudied correlations between dimensions of donor preferences.