The Tragedy of the Commons Is Worse When a Minority Holds the Commons

The tragedy of the commons is the standard story about shared resources. A pasture is open to every herdsman in the village. Each one gains the full benefit of adding a cow and bears only a fraction of the cost, since the overgrazing is spread across everyone. So each adds a cow, and the pasture dies. Individually rational choices, collectively ruinous outcome.

The textbook remedy is an authority: somebody above the herdsmen who can count the cows and say enough. I want to ask what happens when that authority is itself a minority with interests, because that is the case we actually live in.

Does the Tragedy Occur Under Representative Government?

Yes, and the question is worth asking in that form because the answer is usually assumed to be no. Government is supposed to be the outside force that prevents the tragedy. It is not outside. It is a group of people, a large one, with all the ordinary inclinations to use a common resource for its own benefit, and it sits in the position where using it is easiest.

Look at how the large commons are actually held. Land rights, mineral rights, oil fields, fishing grounds, broadcast spectrum, the atmosphere as a dump for carbon: these belong to everyone in principle and are divided, in practice, among a small number of licensees, concession holders, and the officials who grant the licences. The resource is the majority's. The extraction is a minority's.

Why This Makes It Worse, Not Better

Two things go wrong that do not go wrong in the village.

First, nobody can say enough. The village needed an authority above the herdsmen. Under representative government the authority is the herdsmen: the people with the concessions fund the campaigns, staff the ministries, and write the regulations. A regime whose defining feature is diffuse, contestable power has no position from which the damage can be seen and stopped. That is not a defect of particular politicians. It is what dispersed, purchasable authority looks like from the point of view of a resource.

Second, the extractor can survive the collapse. In the village, the herdsman who kills the pasture starves with everyone else, which is why the village can sometimes reach agreement without any authority at all. The oil concessionaire does not starve when the field runs dry. He is rich, he has other lines of business, and he moves on. The revenue from running the resource down is astronomical and the personal cost of its exhaustion is nearly zero.

So the incentive that eventually restrains the herdsman, the fact that he too has to live here, is simply absent for the people who control the largest commons. They are playing the game with the majority's stake and their own winnings.

The Same Asymmetry in Cooperation Generally

This is a special case of something broader. Game theory tells us cooperation is sustained when the parties share the gains from it roughly in proportion to their contribution, and when defection is visible and punished.

Minority rule breaks the first condition by design. A ruling minority takes a disproportionate cut of what cooperation produces, and that increases its incentive to defect from any agreement that would limit the take. Every political system in history built around a small governing group has had this property, and most made it worse, because the smaller the group the larger each member's share of the surplus and the more each has to lose from restraint.

Concentrated power is not a solution to the commons problem. It is the commons problem, with the herdsmen given a uniform.

Why Direct Decision Changes the Arithmetic

Now run the same resource under a system where the majority decides directly whether to stop the extraction.

Each voter's personal loss from stopping is small. Nobody in the majority is giving up a fortune; the cost of restraint is spread as thinly as the cost of overgrazing was. Meanwhile each voter's personal loss from the resource being exhausted is large and unavoidable: it is their coastline, their fishery, their air. The person deciding is the person who has to live with the outcome.

That is exactly the configuration in which the village manages its pasture without a lord, and it is the configuration representative government destroys by inserting a small group between the resource and the people who depend on it. I am not claiming a public would always choose well. I am claiming that its incentives point the right way, and the concessionaire's point the wrong way, and that a decision procedure should be judged first on where its incentives point.

The Objection From Chaos

The usual reply is that without a ruling body everyone will cheat and there will be no one to punish them. Consider the alternative honestly. When the body doing the allocating is visibly taking more than its share, everyone else concludes the agreement is a fraud, and the rational responses are to grab what you can, to fight for control of the body, or to ignore the rules entirely. Corrupt enforcement does not deter defection; it licenses it.

A decision that everyone made together, on terms everyone can see are equal, is one that people are far more willing to police each other on, and far more willing to see punished harshly when broken. The village that agreed its own grazing limits enforces them. The village that had limits imposed by a lord who keeps the best field for himself does not.

The commons does not need a master. It needs the people whose commons it is to be the ones who decide.