Exploring information provision to promote stem cell donation: Evidence from a field experiment of the Japan Marrow Donor Program
通过在日本骨髓捐赠计划中向匹配成功的潜在捐赠者发送包含特定信息的信件，发现强调每位患者可匹配捐赠者数量有限的信息能将捐赠者完成确认分型阶段的概率提高7.3%，从而减少捐赠者退出并增加可用捐赠者。
Registered potential donors in stem cell transplantation may refuse to donate when matched with patients, causing supply shortages. To reduce such donor dropout, we developed behavioral interventions comprising messages added into the letters sent when donors are matched with patients in Japan, and conducted a field experiment to evaluate the effect of our intervention. The results demonstrate that the inclusion of our messages can reduce donor dropout and increase donor availability for transplantation. Specifically, the message emphasizing the limited number of compatible donors per patient increased the probability of donors completing the confirmatory typing stage by 7.3%. Since physicians can choose the best donor for proceeding to donation from those who complete confirmatory typing, this message increases donor availability for transplantation.