I conduct a field experiment at a charitable bookstore to provide evidence for the role of identity under "pay-what-you-want pricing". When subtly reminded of their participation in the store's membership program members paid significantly more per book then without a reminder, while this nudge...

This study designs two field experiments to estimate the effect of binding deadlines and reminders on charitable giving. We sent out 62,000 e-mails and text messages to prior donors of a large Danish charity while varying the length of the deadline and whether they received a reminder. We find...