Oligopolies, duopolies, collusion, and cartels | Microeconomics | Khan Academy

TL;DR

Oligopolies are characterized by a few sellers who can either act like monopolies through collusion or compete fiercely like in perfect competition.

Transcript

What I want to do in this video is get a better understanding of oligopolies. And we'll be talking about it, oligopolies. We'll be talking about it more in future videos. And as we've already talked about, this part of oligopolies, the oligo-- and I know I'm completely mispronouncing it-- comes from the Greek word for few. And the poly comes from t... Read More

Key Insights

• 💯 Oligopolies can act like monopolies through collusion or compete fiercely like in perfect competition.
• 🛢️ OPEC is a prominent example of a cartel in the oil industry, controlling a significant portion of the world's oil reserves and production.
• 💦 Coca-Cola and Pepsi engage in fierce competition rather than collusion in the sugar water market.
• ❓ Boeing and Airbus represent a duopoly in the commercial aircraft industry.
• 💳 Airlines and credit card networks are examples of oligopolies where competition is closer to perfect competition than collusion.
• ❓ Governments regulate oligopolistic industries to prevent collusion and promote efficiency.
• 🥺 Perfect competition leads to efficient production and a larger total surplus, benefiting consumers.

Questions & Answers

Q: What is an oligopoly?

An oligopoly is a market structure with a few sellers, where coordination between them can lead to monopoly-like behavior or fierce competition.

Q: What is collusion in an oligopoly?

Collusion is when sellers in an oligopoly coordinate to restrict quantity and raise prices, aiming to maximize their collective economic profit. It is often illegal in most countries.

Q: What is a cartel in an oligopoly?

A cartel is formed when sellers in an oligopoly have a formal agreement to collude, behaving more like a monopoly. OPEC is an example of a cartel in the oil industry.

Q: Why is it challenging to maintain discipline within a cartel?

Even with a formal agreement, there is a strong incentive for any member of a cartel to break the agreement secretly and produce more to benefit from higher prices. Maintaining discipline is difficult.

Summary & Key Takeaways

• Oligopolies consist of a small number of sellers, and the term comes from the Greek words for "few" and "sellers."

• Oligopolies can either act like monopolies through collusion, where they coordinate to restrict quantity and raise prices, or compete fiercely like in perfect competition.

• Examples of oligopolies include OPEC, Coke and Pepsi, Boeing and Airbus, and credit card networks like Visa and MasterCard.