DEMAND FOR GIVING TO MULTIPLE CHARITIES: AN EXPERIMENTAL STUDY

• 成果类型: Article
• 署名作者: Filiz-Ozbay, Emel; Uler, Neslihan
• 署名单位: University System of Maryland; University of Maryland College Park
• 刊物名称: JOURNAL OF THE EUROPEAN ECONOMIC ASSOCIATION
• ISSN/ISSBN: 1542-4766
• DOI: 10.1093/jeea/jvy011
• 发表日期: 2019
• 页码: 725-753
• 关键词: public-goods; charitable contributions; voluntary provision; matching subsidies; field experiment; impure altruism; group-size; rebate; INFORMATION; income

摘要

We study how competition among charities affects individuals' giving behavior. We characterize situations where charities benefitting substitute or complementary causes incentivize donations by offering subsidies in the form of rebates. Our theory predicts that an increase in the rebate rate offered by a given charity relative to a substitute charity will shift donations away from the substitute charity, but this stealing effect is not expected when complementary charities are considered. Our model further characterizes the conditions under which total donations increase with rebates. We test the model in an experimental setting, and demonstrate that the experimental results support our theoretical predictions. We derive the demand for giving as rebates vary for both substitute and complementary causes. The social net benefit of rebates is calculated by comparing campaign costs with new donations generated.