large-scale natural field experiment and a laboratory experiment. Similar to findings in the literature, conventional … matching for the same project results in partial crowding out in the field experiment and, as predicted, crowding out is … reduced under the novel matching scheme. The lab experiment provides more fine-tuned evidence for the change in crowding and …

matching method, some simple theoretical considerations, and evidence from a large-scale natural field experiment on charitable …

with intuition, the data from our experiment in the first year suggests that multiple donations are substitutes and …

-scale natural field experiment and a laboratory experiment. Similar to findings in the literature, conventional matching for the … same project results in partial crowding out in the field experiment and, as predicted, crowding out is reduced under the … novel matching scheme. The lab experiment provides more fine-tuned evidence for the change in crowding and yields further …

best way to encourage participation. In a field experiment we vary suggested amounts and test different wordings for a …

threshold matching can induce crowd-ing in if appropriately personalized. In a field experiment, we explore how thresholds …