Monopoly in Economics

Chapter 16: Monopoly

Chapter Objectives (1 of 2)

  • Explain the differences between a monopoly and a perfectly competitive firm.
  • Describe the characteristics of a monopoly.
  • Describe the barriers to entry that help create monopoly markets.
  • Describe the characteristics of a natural monopoly.
  • Explain why the monopolist's marginal revenue declines as the quantity produced increases.
  • Describe the slope of the demand curve for a monopoly.

Chapter Objectives (2 of 2)

  • Determine the monopolist's profit-maximizing price and quantity.
  • Identify the area on a graph that represents a monopoly's profit or loss.
  • Analyze the impact of regulation on monopolistic market structures.
  • Explain why deadweight loss occurs in a monopoly market structure.
  • Analyze the behavior and market effects of monopolies.
  • Compare total surplus in a market under monopolistic conditions versus competitive conditions.
  • Determine if a price scheme scenario is an example of price discrimination.

16-1 Why Monopolies Arise

Definition of Monopoly

  • A monopoly is defined as a firm that is the sole seller of a product without close substitutes.
  • A monopoly has market power, making it a price maker. This market power arises due to barriers to entry, preventing other firms from entering the market and competing.

Barriers to Entry

  • Main Sources of Barriers to Entry:
    • Monopoly resources: A single firm owns a crucial resource.
    • Government regulation: Exclusive licenses and patents restrict competition.
    • The production process: Economies of scale can create cost advantages for established firms.
Monopoly Resources
  • A firm that owns key resources required for the production can establish a monopoly.
    • Example: The only water provider in a town, or DeBeers' ownership of most diamond mines.

Government-Created Monopolies

  • Some monopolies are created through government action, giving a single firm the exclusive capability to sell a product or service.
    • Examples include patent and copyright laws, which may lead to higher prices and profits but can also incentivize innovation by rewarding creative endeavors.

Natural Monopolies

  • A natural monopoly occurs when a single firm can supply a good or service to an entire market at a lower cost than two or more firms can.
    • This typically happens due to economies of scale; for instance, utility companies like those providing water or electricity are common examples.
    • Natural monopolies often involve club goods, which are excludable but not rival in consumption.