Matching and challenge gifts to charity: evidence from laboratory and natural field experiments
通过自然田野实验和实验室实验，研究了配捐和挑战捐赠两种策略对慈善捐款的影响，发现挑战捐赠能有效促进捐款，而配捐则无效。
Abstract This study designs a natural field experiment linked to a controlled laboratory experiment to examine the effectiveness of matching gifts and challenge gifts, two popular strategies used to secure a portion of the $200 billion annually given to charities. We find evidence that challenge gifts positively influence contributions in the field, but matching gifts do not. Methodologically, we find important similarities and dissimilarities between behavior in the lab and the field. Overall, our results have clear implications for fundraisers and provide avenues for future empirical and theoretical work on charitable giving.