We present findings from a field experiment conducted at 40 elementary schools involving 8,000 children and 400,000 child-day observations, which tested whether providing short-run incentives can create habit formation in children. Over a three or five week period, students received an incentive...

While selfish incentives typically outperform prosocial incentives, in the context of customer referral rewards, prosocial incentives can be more effective. Companies frequently offer “selfish” (i.e., sender-benefiting) referral incentives, offering customers financial incentives for...