What Is a Cartel? Meaning in Economics and Examples

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A cartel is a group of independent producers that agree to act together, rather than compete, on prices, output, customers or territories. The members stay separate companies (or countries), but they coordinate the decisions that competition would normally discipline. The aim is to earn something close to monopoly profits by raising prices above the competitive level, usually by holding back supply.

What Is a Cartel in Economics?

In economics, a cartel is a form of explicit collusion: firms that would otherwise set prices and quantities independently negotiate a joint plan, behaving as far as they can like a single monopoly seller.

The theory comes from the study of “cooperative” oligopoly. When a handful of suppliers dominate a market, each firm’s choices affect the others, and a few firms can meet, agree and watch each other far more easily than hundreds could.

How a Cartel Works

The main forms of cartel agreement are:

Price fixing. Members agree on a minimum price, a common price increase, or a ban on discounts. A price floor means no member may sell below an agreed level.

Output quotas. Members agree to produce or sell no more than an assigned quantity. Limiting total supply pushes the market price up without anyone formally announcing a price.

Market allocation. Customers, regions or product lines are divided among members. A firm may agree not to sell in another member’s territory or not to approach another member’s customers, which guarantees each a share of revenue.

Bid rigging (collusive tendering). On procurement or project contracts, members decide in advance who will win. Others submit deliberately high bids, withhold bids, or take turns winning, so the buyer sees a competitive process that is not real.

Terms of trade. Members may standardize delivery mode, location and timing, payment terms or credit conditions, removing competition on everything except the product itself.

Competition authorities, including those coordinated through the OECD, treat price fixing, output restrictions, market allocation and bid rigging as “hard core” cartel conduct, the most serious category of anti-competitive agreement.

Worked Example: Why Cartels Pay and Why Members Cheat

Hypothetical example, simplified for teaching. Four firms make an identical product at a constant cost of $6 per unit.

The assumption is that buyers will take 700 units at $11 and 775 units at $10. Under the agreement, each member’s profit rises from $500 to $875 by producing less. But a single member that quietly returns to 250 units earns $1,000, even though the extra supply drags the price down for everyone. If all four reason the same way, output drifts back toward 1,000 units and the price toward $8.

This is the classic prisoner’s dilemma: the group does best by cooperating, while each member individually does best by cheating. It explains why cartels invest so heavily in monitoring, quota reporting and punishment of members who break ranks.

Why Cartels Matter: Effects on Members and Consumers

For members, a cartel offers:

• Monopoly-like pricing power without a merger
• Higher margins and more predictable revenue
• Possible cost savings from shared arrangements and economies of scale
• A barrier that makes entry harder for new competitors

For buyers and the wider economy, the costs are:

• Prices above the competitive level, or reduced supply for those who will not pay them
• Less pressure on members to cut costs or innovate, since they are shielded from rivals
• Lost output that buyers would have valued at more than it cost to produce, the standard deadweight loss of restricted supply

Limitations of a Cartel

Cartels face pressures that often break them apart:

• Cheating. As the example shows, each member gains by exceeding its quota or offering secret discounts.
• Detection problems. Hidden price cuts, rebates and side deals are hard to observe, especially when prices are negotiated privately.
• New entrants. High cartel prices attract outside firms that are not bound by the agreement.
• Substitutes. If buyers can switch to a different product, the cartel’s pricing power shrinks.
• Different costs and goals. Low-cost members may prefer higher output; members with urgent revenue needs may refuse cuts.
• Demand shocks. In a downturn, the pressure to sell more at any price grows.
• Legal risk. Where cartels are illegal, any member can expose the others, and leniency programs reward the first one to confess.

Cartels last longest where the product is standardized, sellers are few, entry is costly, demand does not respond much to price, and members can see each other’s sales.

Cartel vs. Related Terms

Cartel vs. monopoly. A monopoly is one firm owning all or nearly all of a market. A cartel is several firms coordinating. A cartel’s control is weaker because it depends on members keeping their promises.

Cartel vs. oligopoly. An oligopoly is a market structure: few sellers. A cartel is a behavior: an agreement among those sellers. Every cartel needs concentrated supply, but most oligopolies are not cartels.

Explicit vs. tacit collusion. A cartel involves an actual agreement, written or verbal. Tacit collusion is when firms reach similar prices by observing and anticipating each other without agreeing. Under US law, independent parallel pricing alone is not a cartel; an agreement is the key element.

Cartel vs. trade association or joint venture. Industry groups that set safety standards or firms that combine to build a product are not automatically cartels. They cross the line when they are used to fix prices, divide markets or limit output.

Are Cartels Legal?

United States. The Sherman Act of 1890 prohibits contracts, combinations and conspiracies in restraint of trade. Price fixing, bid rigging and market allocation among competitors are treated as illegal per se, meaning no justification is considered, and they can be prosecuted as crimes by the Department of Justice. The Clayton Act and the Federal Trade Commission Act add civil enforcement and allow injured buyers to sue for damages.

European Union. Article 101 of the Treaty on the Functioning of the European Union prohibits agreements between undertakings that restrict competition, and the European Commission can impose large fines.

Why oil cartels are legal. The Organization of the Petroleum Exporting Countries (OPEC) coordinates its member states’ oil production policies and states its aim as stabilizing oil markets. Because its members are sovereign governments, US courts have been reluctant to apply antitrust law to them, citing sovereign immunity and related doctrines. A bill known as NOPEC, intended to allow such suits, has been introduced in Congress several times since 2000 without becoming law. OPEC rejects the cartel label, calling itself a permanent intergovernmental organization.

Examples of Cartels

OPEC. Member countries agree on production targets intended to influence global oil prices, a direct application of output quotas.

The lysine cartel. In the 1990s, US prosecutors uncovered an international conspiracy among producers of lysine, an animal feed additive, to fix prices and allocate sales volumes. Archer Daniels Midland pleaded guilty, and the case became a landmark in criminal antitrust enforcement.

Foreign exchange rigging. In 2014 and 2015, regulators in the US and UK fined several major banks over attempts to manipulate foreign exchange benchmark rates. One traders’ chat room involved called itself “The Cartel,” which is where the phrase “currency cartel” comes from.

Drug cartels. Drug trafficking organizations such as the Medellín Cartel, led by Pablo Escobar until his death in 1993, fit the technical definition: loosely affiliated groups that set rules among themselves to control the price and supply of illegal drugs. In everyday speech “cartel” often means a criminal organization, but the economic meaning is the coordination of supply and price.

FAQs

The Bottom Line

Cartels matter to buyers, competitors and regulators because they push prices above competitive levels and reduce supply. Most are fragile: members gain by cheating, outsiders enter, and leniency programs reward the first to confess. Coordination tends to last only where sellers are few, products are standardized, entry is costly and members can watch each other's sales.