Grade 11 Economics: Chapter 2- Lesson 2.3.3

What is the definition of price discrimination?

Price discrimination occurs when a monopolist sells different units of the exact same output at different prices to different consumers.

What is the primary objective of a monopolist when practicing price discrimination?

To maximize total profit and revenue by capturing and receiving the consumer surplus.

What does the degree of price discrimination refer to?

It refers to the extent or capability of a seller to divide the market and successfully extract consumer surplus.

How many distinct degrees of price discrimination are traditionally recognized in economic literature?

Three degrees: First-degree, second-degree, and third-degree price discrimination.

What does First-degree (or perfect/primary) price discrimination require the monopoly seller to know?

The absolute maximum price—also known as the reservation price—that every single individual consumer is willing to pay.

Under perfect (first-degree) price discrimination, what happens to consumer surplus?

It is completely wiped out and transformed entirely into monopoly revenue, meaning total profit equals the sum of consumer surplus and producer surplus.

Why is there no deadweight loss under first-degree price discrimination?

Because the monopolist sells to every consumer down to the marginal consumer whose reservation price equals marginal cost (P = MC). Output expands to the socially efficient level.

What is another common name for first-degree price discrimination based on how it is offered to buyers?

"Take-it-or-leave-it" price discrimination, because the firm charges the maximum price or denies the sale completely.

What is Second-degree price discrimination?

When a monopolist charges different prices based on the quantity or volume of the goods consumed (offering bulk discounts).

Give a real-world example of how airlines use product differentiation as a form of second-degree price discrimination.

Offering multiple tiers of service on the same flight (e.g., First Class vs. Economy Class) to separate consumers based on their preferences and capture more surplus.

What is Third-degree price discrimination, and what is its alternative name?

It involves charging completely different prices to distinct consumer groups. It is also termed "market segmentation".

What condition must the submarkets meet for third-degree price discrimination to work effectively?

The submarkets must be completely separated from each other, and each group must have a demand curve with a different price elasticity.

What is the mathematical profit-maximization rule for a monopolist operating in segmented markets (third-degree)?

It must allocate output so that Marginal Cost equals Marginal Revenue in each separate market

(MC = MR_1 = MR_2)

Name three common real-world bases or factors used to segment a market for third-degree price discrimination.

Any three of the following: Age (e.g., student/senior discounts), income, geographic location, quantity of purchase, or frequency of visits.