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Four Market Model Summary: Oligopoly quiz

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  • How many firms typically exist in an oligopoly market structure?
    An oligopoly typically consists of a few firms, often at least two, but not just one as in a monopoly.
  • What is a key characteristic of barriers to entry in oligopoly markets?
    Oligopolies have high barriers to entry, making it difficult for new firms to enter the market.
  • Why can oligopolies maintain long-run profitability?
    Oligopolies can maintain long-run profitability due to their market power and limited competition.
  • How does the demand curve faced by oligopolies differ from that in perfect competition?
    Oligopolies face a downward-sloping demand curve, unlike the flat demand curve in perfect competition.
  • What is the relationship between price and marginal revenue in an oligopoly?
    In an oligopoly, price is greater than marginal revenue because of the downward-sloping demand curve.
  • How does the price in an oligopoly compare to marginal cost?
    Price in an oligopoly exceeds marginal cost, indicating inefficiency compared to perfect competition.
  • What role does strategic decision-making play in oligopoly markets?
    Strategic decision-making is crucial in oligopolies, often analyzed using game theory due to interdependence among firms.
  • What is interdependence in the context of oligopoly?
    Interdependence means that each firm's actions affect and are affected by the actions of other firms in the market.
  • Name two examples of industries that are oligopolies.
    The soft drink industry (Coke and Pepsi) and aluminum suppliers are examples of oligopolies.
  • Why can't oligopolies simply use marginal revenue equals marginal cost to find profit-maximizing output?
    Oligopolies must consider competitors' actions, making profit-maximizing output a strategic decision rather than a simple calculation.
  • What market structure would exist if there was only one firm instead of a few?
    If there was only one firm, the market structure would be a monopoly.
  • How does market power affect pricing in oligopolies?
    Market power allows oligopolies to influence prices and output, often resulting in higher prices than in competitive markets.
  • What concept is often used to analyze firm behavior in oligopolies?
    Game theory is often used to analyze strategic interactions and firm behavior in oligopolies.
  • What distinguishes oligopoly from perfect competition in terms of efficiency?
    Oligopolies are less efficient because price exceeds marginal cost, unlike perfect competition where price equals marginal cost.
  • Why is understanding oligopoly dynamics important for studying market efficiency?
    Understanding oligopoly dynamics helps explain how imperfect competition affects marginal cost, marginal revenue, and overall market efficiency.