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Four Market Model Summary: Perfect Competition quiz

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  • What is the number of firms like in a perfectly competitive market?
    There are an almost infinite number of firms, so no single firm can influence the market price.
  • Give two examples of markets that are often considered perfectly competitive.
    Agricultural products like wheat and foreign exchange markets are examples of perfect competition.
  • What are barriers to entry, and do they exist in perfect competition?
    Barriers to entry are obstacles that prevent new firms from entering a market, and in perfect competition, there are none.
  • How do firms in perfect competition maximize their profit?
    Firms maximize profit where marginal revenue equals marginal cost.
  • What happens to economic profit for firms in perfect competition in the long run?
    In the long run, firms in perfect competition cannot make economic profits; price stabilizes at the minimum of average total cost.
  • What is the relationship between price and average revenue in perfect competition?
    In perfect competition, price always equals average revenue.
  • How does price relate to marginal revenue in perfect competition?
    Price equals marginal revenue in perfect competition, which is unique among market structures.
  • What is the relationship between price and marginal cost in perfect competition?
    Price equals marginal cost in perfect competition, leading to productive and allocative efficiency.
  • Why can't firms in perfect competition influence the market price?
    Because each firm's output is a tiny fraction of the total market supply, so individual actions do not affect the overall price.
  • What does it mean for a market to have no barriers to entry or exit?
    It means firms can freely enter or leave the market without facing obstacles.
  • At what point do firms in perfect competition choose their output level?
    They choose the output where marginal revenue equals marginal cost.
  • What does it mean for price to be a 'flat line' in perfect competition?
    It means the price remains constant regardless of the quantity produced by an individual firm.
  • What is the significance of price equaling marginal cost in perfect competition?
    It ensures both productive and allocative efficiency in the market.
  • How does economic profit differ from accounting profit in perfect competition?
    Economic profit includes opportunity costs, while accounting profit only considers explicit monetary costs.
  • Why is perfect competition considered efficient?
    Because resources are allocated where price equals marginal cost, achieving both productive and allocative efficiency.