Voluntary revelation of the demand for public goods using a provision point mechanism
通过实验室实验检验了一种带有退款保证和超额贡献按比例返还的供给点机制，发现该机制在大学生群体中能有效揭示公共品需求，为实际应用提供了基础。
A one-shot provision point mechanism with money-back guarantee and proportional rebate of excess contributions is tested in an induced value framework and in experimental environments chosen to mimic field conditions. The results show that this relatively simple mechanism is empirically demand revealing in the aggregate when used with large groups of students who have heterogenous valuations for the public good. Approximately demand revealing behavior was obtained under three alternative information conditions. These results are an important step in the design of a mechanism simple enough to allow field applications, but capable of efficiently providing public goods through voluntary contributions.