This document discusses the concept of oligopoly and provides examples. It defines oligopoly as a market structure with a few firms and many buyers. It notes that firms in an oligopoly are mutually interdependent and considers factors like price, competition, relationships between firms, and economic scale. It provides graphs to illustrate concepts like kinked demand curves and marginal revenue curves. It gives common examples of oligopolistic industries and compares oligopoly to monopoly, perfect competition, and monopolistic competition.