Social Science Bites

Consider two different, but similar situations. In the first, children are asked to pull ropes together. Candy cascades down, but in unequal distribution – three for one child and one for the other. In the second situation, the children come across the sweets but without joint labor, and again find an uneven distribution. What usually happens next differs between the two situations. When the kids work together, they tend to willingly share the proceeds so everyone ends up with an equal share. But when the candy was discovered through individual serendipity, the children tend to accept the uneven outcome and don’t equalize shares. The first situation involves what Mike Tomasello, the James F. Bonk Distinguished Professor of Psychology at Duke University, would call joint commitment; “When children produce sweets collaboratively they feel they should share them equally.” There’s no explicit promise of an equal share, but there is an implicit one that’s just as recognizable and genuine. As Tomasello details to i