Recent large-scale randomized experiments find that helping people form implementation intentions by asking when and where they plan to act increases one-time actions, such as vaccinations, preventative screenings and voting. We investigate the effect of a simple scalable planning intervention...

The experimental study "Letting Down the Team? Social Effects of Team Incentives" by Philip Babcock and colleagues (2015) proposes that team incentives significantly enhance individual performance through social pressure and peer effects. The findings suggest that individuals are motivated by a...

How do peers influence the impact of incentives? Despite much work on incentives, little is known about the spillover effects of incentives. We investigate two mechanisms by which these effects can occur: through peers' actions and peers' incentives. In a field experiment on snack choice (grapes...