Economic Valuation as a Communication Device for Environmental Philanthropy: Evidence from the Lab and Field
通过实验室和田野实验，检验经济估值信息作为沟通策略对鼓励环境慈善捐赠的效果，发现捐赠历史和会员身份与估值信息存在交互作用，动机挤出效应仅在田野实验中出现。
Through a randomized, controlled laboratory experiment and a natural field experiment with a nonprofit organization partner, we test the efficacy of economic valuation information as a communication strategy for encouraging environmental philanthropy. Although the use of monetary values in fundraising appeals might encourage some to give, for others it may crowd out intrinsic motivation to donate. We find that recent monetary support of environmental causes and organization membership status interact with the economic valuation treatment. Significant heterogeneous effects are found in both experiments, but evidence of motivation crowding is found only in the field.