In many environments, tournaments can elicit more effort from workers, except perhapswhen workers can sabotage each other. Because it is hard to separate effort, ability andoutput in many real workplace settings, the empirical evidence on the incentive effect oftournaments is thin...

There has been little systematic study of the mechanisms typically used to raise money for charity. One of the most common is the simple raffle in which participants purchase chances to win a prize at a constant price. We conduct a field experiment randomly assigning participants to four raffle...

There has been little systematic study of the mechanisms typically used to raise money for charity. One of the most common is the simple raffle in which participants purchase chances to win a prize at a constant price. We conduct a field experiment randomly assigning participants to four raffle...