The Tragedy of the Commons: Why Shared Resources Get Destroyed

The Tragedy of the Commons: Why Shared Resources Get Destroyed Imagine a shared pasture where several herders graze their cattle. Each herder benefits from adding one more cow to the field. The cost of overgrazing, however, is spread across all herders. So each individual herder has an incentive to add more cattle, even as the collective result is a destroyed pasture that supports no cattle at all. This is the Tragedy of the Commons, described by Garrett Hardin in 1968. It is one of the most important mental models for understanding why rational individual behavior can produce irrational collective outcomes. Where You See It The Tragedy of the Commons is everywhere once you know to look for it: Environmental resources. Overfishing, deforestation, pollution, and carbon emissions all follow this pattern. Each fishing boat benefits from catching more fish. The ocean pays the cost. Workplace dynamics. A shared meeting room, a common budget, a team's collective attention -- all are commons