A cartel is a group of independent businesses or organizations that come together to control the market for a specific product or service. By collaborating, they can set prices, limit production, or divide markets to maximize their profits. This practice is often illegal in many countries because it restricts competition and can lead to higher prices for consumers. Cartels are commonly associated with industries like oil, drugs, and agriculture. For example, the OPEC cartel regulates oil production among its member countries to influence global oil prices. Governments often monitor and regulate cartels to promote fair competition and protect consumers.