Book cover for Microeconomics

Microeconomics

Jeffrey M. Perloff

ISBN #9781292056531

7th Edition

753 Questions

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19,304 Students Helped

Homework Questions

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Summary
Learning Objectives
Key Concepts
Example Problems
Explanations
Common Mistakes

Summary

Price discrimination allows firms with market power to increase their profits by tailoring prices to different customer groups based on their willingness to pay. By charging higher prices to those with higher reservation prices and lower prices to more price-sensitive customers, firms capture additional profit through both the elimination of consumer surplus and the expansion of their market. Critical components include having market power, being able to segment customers, and preventing resale. Different forms of price discrimination, such as perfect, group, and nonlinear pricing, each offer unique strategies to optimize revenue in various scenarios.

Learning Objectives

1

Explain how price discrimination enables firms to increase profits by capturing consumer surplus and selling additional units to customers with lower willingness to pay.

2

Identify and describe the necessary conditions for effective price discrimination, including market power, the ability to segment consumers based on differing demand curves, and mechanisms to prevent resale.

3

Differentiate between various types of price discrimination such as perfect (first-degree), group (third-degree), and nonlinear (second-degree) price discrimination.

4

Analyze real-world examples (e.g., movie theaters, Disneyland, and designer goods) to understand the practical applications and challenges of implementing price discrimination.

Key Concepts

CONCEPT

DEFINITION

Price Discrimination

The practice of charging different prices to different consumers for the same good or service, based on their willingness to pay.

Consumer Surplus

The difference between what a consumer is willing to pay for a good and what the consumer actually pays.

Market Power

The ability of a firm to set prices above competitive levels due to limited competition or a dominant position in the market.

Perfect Price Discrimination (First-Degree)

A pricing strategy where a firm charges each customer the exact maximum they are willing to pay, capturing all consumer surplus.

Group Price Discrimination (Third-Degree)

A pricing strategy in which a firm charges different prices to different groups of consumers based on identifiable, differing price sensitivities.

Nonlinear Price Discrimination (Second-Degree)

A pricing method where prices vary according to the quantity purchased, offering discounts for larger quantities while keeping the price uniform within each purchase level.

Reservation Price

The maximum amount an individual consumer is willing to pay for a unit of a good or service.

Example Problems

Example 1

In the examples in Table $12.1,$ if the movie theater does not price discriminate, it charges either the highest price the college students are willing to pay or the one that the senior citizens are willing to pay. Why doesn't it charge an intermediate price? (Hint: Discuss how the demand curves of these two groups are unusual.)

Example 2

Many colleges provide students from low-income families with scholarships, subsidized loans, and other programs so that they pay lower tuitions than students from high-income families. Explain why universities behave this way.

Example 3

The pharmaceutical companies Abbott Laboratories, AstraZeneca, Bristol-Myers Squibb Company, Eli Lilly, GlaxoSmithKline, Janssen, Johnson \& Johnson, Novartis, Pfizer, and Sanofi-Aventis Pharmaceuticals provide low-income, elderly people with a card guaranteeing them discounts on many prescription medicines. Why would these firms do that?

Example 4

Alexx's monopoly currently sells its product at a single price. What conditions must be met so that he can profitably price discriminate?

Example 5

College students could once buy a computer at a substantial discount through a campus buying program. The discounts largely disappeared in the late $1990 s,$ when $P C$ companies dropped their prices. "The industry's margins just got too thin to allow for those [college discounts]," said the president of Educause, a group that promotes and surveys using technology on campus (David LaGesse, "A PC Choice: Dorm or Quad?" U.S. News \& World Report, May 5,2003,64 ). Using the concepts and terminology discussed in this chapter, explain why shrinking profit margins are associated with the reduction or elimination of student discounts.
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Step-by-Step Explanations

QUESTION

How does a movie theater increase profit through price discrimination when college students are willing to pay up to $10 and senior citizens only up to $5?

STEP-BY-STEP ANSWER:

Step 1: Identify that college students have a higher willingness to pay ($10) compared to senior citizens ($5).
Step 2: Evaluate uniform pricing: Charging $5 to everyone attracts both groups but leaves consumer surplus for students, while charging $10 loses senior citizen customers.
Step 3: Under price discrimination, charge college students $10 and senior citizens $5, capturing the entire consumer surplus from students while maintaining sales from seniors.
Step 4: Compare profits: Uniform pricing yields lower overall profit, whereas price discrimination leads to an increase (e.g., from $150 to $200 in the provided panel example).
Final Answer: By segmenting the market, the theater captures extra profit through targeted pricing that maximizes revenue from each group.

Price Discrimination in a Movie Theater

QUESTION

How does perfect price discrimination maximize a firm's profit with full knowledge of each customer's reservation price?

STEP-BY-STEP ANSWER:

Step 1: Recognize that a perfectly price-discriminating firm knows each consumer's reservation price, or the maximum they are willing to pay for each unit.
Step 2: For each unit sold, the firm charges the customer exactly their reservation price, meaning there is no consumer surplus left.
Step 3: As a result, the firm’s marginal revenue for each unit sold equals the price at which the unit is sold, allowing the firm to capture all available surplus.
Step 4: The firm continues to sell units until the reservation price equals the marginal cost of production, maximizing profit without inefficiency.
Final Answer: Perfect price discrimination allows the firm to extract the maximum possible revenue from each unit sold, thereby capturing all consumer surplus and optimizing profit.

Perfect Price Discrimination

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Common Mistakes

  • Assuming that any price difference automatically qualifies as price discrimination, without considering cost differences or market conditions.
  • Overlooking the necessity for a firm to have market power and the ability to segment its customers effectively.
  • Confusing uniform pricing with price discrimination, particularly when factors like resale prevention are not adequately addressed.
  • Believing that perfect price discrimination is common in practice, when in reality it requires perfect information which is rarely attainable.