Which of the following descriptions pertains to oligopoly?

• A. A market with one dominant seller
• B. A market with one buyer and many sellers
• C. A market with high competition and many sellers
• D. A market controlled by a few large firms

Answer: (D)

A market controlled by a few large firms characterizes an oligopoly. In this type of market structure, a small number of firms dominate the industry, often leading to a situation where the decisions made by one firm can significantly impact the others. These firms may engage in similar practices regarding pricing, production levels, and marketing strategies, creating interdependent relationships.

Additionally, such a structure can result in less competition compared to markets with many sellers, as the few firms may work to maintain their market positions through various tactics, including collusion or strategic pricing. The limited number of competitors can also lead to market stability, but it can reduce choices for consumers and potentially lead to higher prices because the firms may have enough market power to influence prices above the competitive level.

The other options describe different market structures, such as monopoly and perfect competition, which do not accurately reflect the characteristics of oligopoly. Hence, the description pertaining to a few large firms accurately embodies the essence of an oligopoly.