💼Oligopolies arise from factors like economies of scale, scarce resources, and government regulations.
🚫Existing firms can use predatory tactics to prevent new entrants from competing.
🔄Oligopolists' actions are interdependent, as they need to consider their rivals' responses.
💰Collusion among oligopolistic firms can lead to higher profits but also instability.
📈The concentration ratio measures the degree of domination in an oligopoly.