The authors acknowledge the review and editorial team for incisive feedback. The authors also thank Christophe Van den Bulte for helpful comments, the Wharton Behavioral Laboratory for logistical and financial support, and DonorsChoose.org for invaluable partnership.
All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest or nonfinancial interest in the subject matter or materials discussed in this article. The authors have no funding to report.