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Khan Academy
Khan Academy: Oligopolies, Duopolies, Collusion, and Cartels
Thinking about when oligopolies behave more like monopolies or perfect competitors. [8:26]
Khan Academy
Khan Academy: Monopolistic Competition and Economic Profit
Video lecture explores why it is hard for a monopolisitc competitor to make economic profit in the long run. [8:41]
Khan Academy
Khan Academy: Oligopolies and Monopolistic Competition
Video lecture explores the different markets that are in-between monopolies and perfect competition. [9:21]