What Is Price Discrimination?
Price discrimination is a pricing strategy in which a seller charges different prices to different buyers for the same product or service based on each segment's willingness to pay rather than differences in the seller's cost to serve them. It requires market power, the ability to identify and separate segments, and a barrier preventing arbitrage between segments.
Example: Consider a SaaS vendor selling an identical product to two buyers. Enterprise A pays $120 per seat; an SMB buyer pays $60 per seat. The price gap reflects each segment's willingness to pay, identified through company size and purchase volume, not a cost difference. By contrast, a volume discount that passes along genuine per-unit cost savings is cost-justified pricing, not price discrimination.
Types of Price Discrimination
Three Conditions Required
For price discrimination to function, three conditions must hold simultaneously:
- Market power. The seller must have sufficient pricing latitude to set prices above marginal cost. In a perfectly competitive market, price equals marginal cost and discrimination collapses.
- Segment identifiability. The seller must distinguish buyers by their willingness to pay using signals such as purchase volume, geography, industry vertical, or behavioral data.
- Arbitrage prevention. High-willingness-to-pay buyers must be unable to access the lower price through resale, licensing restrictions, geographic separation, or personalization barriers.
Failure of any single condition collapses the strategy.
Price Discrimination vs. Dynamic Pricing
These two strategies are frequently conflated, but they respond to different variables.
Dynamic pricing adjusts to market conditions such as time of day, demand surges, or inventory levels. Price discrimination adjusts to who the customer is. An airline shifting fares based on seat availability is dynamic pricing; the same airline offering negotiated corporate account rates is price discrimination. Both strategies can coexist within a single pricing system.
Legal Considerations
In the United States, consumer-facing price discrimination is generally legal. No federal statute prohibits a business from charging different consumers different prices for the same product or service.
B2B price discrimination is regulated under the Robinson-Patman Act of 1936. The Act prohibits sellers from charging competing business buyers different prices for the same goods when the price difference may substantially harm competition. Two important scope limits apply: the Act covers goods, not services, and it is rarely enforced today, with the Federal Trade Commission bringing very few actions in recent decades.
One boundary applies regardless of context: pricing based on protected characteristics such as race, gender, or religion is prohibited under federal civil rights law and falls outside any legitimate pricing framework.
Related Terms
- Price segmentation: The practice of dividing a market into distinct groups with differentiated price points based on identifiable differences in value perception or willingness to pay.
- Willingness to pay: The maximum price a buyer will accept before choosing an alternative, and the primary input variable in discriminatory pricing models.
- Value-based pricing: A strategy that sets prices according to perceived customer value rather than cost, forming the analytical foundation for segment-level pricing.
- Price optimization: The process of determining price points that maximize a defined objective such as margin or revenue across customer segments and channels.
