Imperfect Competition Study Notes

UNIT 4: Imperfect Competition

AP EXAM WEIGHTING

  • 15-22% of total exam weighting
  • 8-10 class periods devoted to this unit

BIG IDEA 3: Production Choices and Behavior

  • Central Question: What drives producers' decision-making?
  • Key Inquiry: How are imperfectly competitive markets inefficient?

Developing Understanding

In reality, firms do not primarily operate in perfectly competitive markets. This unit focuses on how imperfectly competitive markets diverge from the perfect competition model discussed in Unit 3. The objective is to enhance students' comprehension of market efficiency and inefficiency through the welfare implications of such markets. Additionally, students will be introduced to oligopoly behavior and the field of game theory, which facilitates the study of strategic decision-making among firms.

Implications of Market Efficiency
  • Understanding what constitutes market efficiency is crucial, as it relates to welfare economics and the way resources are allocated in various market structures.
Game Theory Introduction
  • Game theory will be a pivotal component in analyzing oligopolistic behavior. Students will explore how firms make decisions in competitive environments where the actions of one firm impact others.

Building Course Skills

Key Skills to Develop
  • 1.D: Describe the similarities and differences between various market structures.
  • 2.C: Use real-world examples for discussions to facilitate understanding of market characteristics.
  • 4.B: Employ graphic organizers such as Venn diagrams to assess market structures.
  • 4.C: Graph each market structure for visualization and comprehension.
Practical Application of Skills
  • Real-World Examples: Encourage students to analyze current events or companies that exemplify different market behaviors, enriching their conceptual understanding of market structures.
  • Graphic Organizers: Utilize Venn diagrams to contrast and compare characteristics of market structures like monopolies, oligopolies, and monopolistic competition.
Graphing Market Structures
  • Graphing is a crucial skill that students will need to master in this unit. Assist students in distinguishing between:   - License/Patent Monopolies   - Natural Monopolies   - Monopolistically Competitive Firms in both short-run (with profits or losses) and long-run equilibrium phases.
  • Common Characteristics of Graphs: A critical characteristic to note is that the marginal revenue curve lies below the demand curve for all imperfect product market graphs. Students should practice creating these graphs with accuracy and confidence.

Preparing for the AP Exam

  • Game Theory Significance: Game theory is essential for both multiple-choice and free-response sections on the AP Exam, though it poses challenges for some students.
  • Guided Practice: Offer students ample opportunities to practice interpreting payoff matrices, identifying dominant strategies, and determining Nash equilibria.
  • Redrawing Payoff Matrices: Students should also be adept at modifying payoff matrices following changes in the strategic environment.
  • Past AP Exam Questions: Engaging with previous exams, such as 2013 AP Exam Question #2, will provide students with practical experience in applying their knowledge in an exam context.

Conclusion

This unit on imperfection in competition aims to broaden students' understanding of economic theories and promote skills necessary for analysis, ultimately preparing them for real-world economic scenarios and the AP exam.