Tragedy of the commons

Industrial pollution as an example of the tragedy of the commons.

The tragedy of the commons is a concept in economics and environmental science that describes a situation in which individual users, acting independently according to their own self-interest, deplete or spoil a shared resource, even though it is not in anyone's long-term interest for this to happen. The term was popularized by the ecologist Garrett Hardin in his 1968 article published in the journal Science.

Concept

The tragedy of the commons occurs when individuals neglect the well-being of society in the pursuit of personal gain. This leads to the overconsumption and ultimately the depletion of the common resource. The concept is often illustrated with the example of a shared pasture, or "commons," where multiple herders graze their cattle. Each herder benefits individually from adding more cattle to graze, but if all herders do this, the pasture becomes overgrazed and eventually unusable.

Cows grazing on a common pasture.

Historical Background

The idea of the commons dates back to medieval England, where villagers had shared rights to graze livestock on common land. The term "tragedy of the commons" was first used by the economist William Forster Lloyd in 1833, but it was Hardin's article that brought widespread attention to the concept.

Modern Examples

Modern examples of the tragedy of the commons include overfishing in the oceans, air pollution, and deforestation. These issues arise because the benefits of exploiting the resource are immediate and personal, while the costs are distributed among all users.

Diagram illustrating the tragedy of the commons.

Solutions

Several solutions have been proposed to address the tragedy of the commons, including privatization, regulation, and the establishment of collective agreements. Elinor Ostrom, a political economist, argued that local communities can often manage common resources effectively through collective action and self-governance.

Criticism

Critics of the tragedy of the commons argue that it oversimplifies complex social and environmental issues. They point out that many communities have successfully managed common resources for centuries without depleting them.

Sheep grazing, an example of resource use that can lead to a tragedy of the commons.

Related Pages

• Commons
• Sustainability
• Environmental economics
• Public goods

References

• Hardin, Garrett. "The Tragedy of the Commons." Science, 1968.
• Ostrom, Elinor. Governing the Commons: The Evolution of Institutions for Collective Action. Cambridge University Press, 1990.

Deforestation as a modern example of the tragedy of the commons.

Artistic depiction of a natural landscape, highlighting the importance of preserving common resources.