Understanding Market Structures: Single Buyer vs. Single Seller

This question asks about different types of market structures and specifically identifies the one characterized by having a single buyer for a product or service. Let's look at the options provided and define each one to find the correct answer.

Defining Key Market Structures

Market structures describe the competitive landscape of an industry. They are often defined by the number of buyers and sellers, the type of product (homogeneous or differentiated), and barriers to entry and exit.

• Monopoly: This is a market structure where there is a single seller dominating the market for a unique product or service with no close substitutes. The seller has significant market power.
• Duopoly: This market structure features two main sellers who dominate the market. It's a specific type of oligopoly.
• Monopsony: This is a market structure characterized by a single buyer for a particular product or service. In a monopsony, the buyer has significant power over the sellers (suppliers) due to their unique position.
• Oligopoly: This market structure involves a small number of sellers who dominate the market. The actions of one seller can significantly impact the others.

Analyzing the Question and Options

The question specifically mentions a market with a single buyer for a Product/Service. Based on our definitions:

• Monopoly is about a single seller, not a single buyer.
• Duopoly is about two sellers, not a single buyer.
• Monopsony is precisely defined as a market with a single buyer.
• Oligopoly is about a few sellers, not a single buyer.

Therefore, the market structure with a single buyer is Monopsony.

Examples of monopsony can include a large factory being the only major employer in a small town (buying labor services), or a government agency being the sole buyer of a specific type of military equipment.

Conclusion on the Single Buyer Market

The question asks for the market where there is a single buyer. The definition of Monopsony perfectly matches this description. The other options (Monopoly, Duopoly, Oligopoly) describe markets based on the number of sellers, not buyers.

Revision Table: Market Structures

Additional Information on Monopsony Power

Just as a monopolist seller has power over price, a monopsonist buyer has power over the price they pay. A monopsonist can often purchase goods or services at a lower price than they would in a competitive market because sellers have limited alternative buyers. This power can influence wage rates in labor markets or prices paid for raw materials or components.

Understanding the distinction between markets dominated by sellers (like Monopoly, Oligopoly) and those dominated by buyers (like Monopsony) is crucial for analyzing market behavior and outcomes.