Increasing Contributions in Solicitation Campaigns

Fraser, Hite, & Sauer (1988)
Summary by 
Mark Egan

The authors ran a door-to-door field experiment in Ohio to test the efficacy of an anchor on charitable donations. Of the 640 people asked for donations, 20% gave money. Of these 128, those told of the $20 anchor donated significantly more than the control.They also found that adding the phrase “even a penny would help” more than doubled the compliance rate from 15% in the control group to 34%.