Market Structures — Practice Questions

Market StructuresEconomics Fundamentals — From fierce competition to a single dominant seller.Market structure describes how much competition a market has, which shapes prices, choice, and quality.

Perfect competition: many sellers of identical goods, all price takers.

Monopolistic competition: many firms with differentiated products, like restaurants.

Oligopoly: a few large firms dominate.

Monopoly: a single seller with no close substitutes.

Why monopolies concern economistsWithout competition, a monopoly can restrict output and charge higher prices than a competitive market would. That is why antitrust laws exist.More competition generally pushes prices down and choice up. Barriers to entry protect incumbents from that pressure.15 practice questions with explanations. Free, and no account is needed to start.