Share contracts are common in principal-agent relationships when returns are uncertain and it is costly to measure the agent's contribution. Well-known examples of these types of arrangements include sales commissions for real estate agents, contingency fees for attorneys, and cropshare...

Social norms are customary or ideal forms of behavior to which individuals in a group try to conform. From an analytical standpoint, the key feature of social norms is that they induce a positive feedback loop between individual and group behavior: the more widely that a norm is practiced by...