Question

Patent rights for a product or for a production process lead to which of the following market structures?

• A. Monopoly
• B. Duopoly
• C. Perfect competition
• D. Monopolistic competition

Hint:

Patents are a classic example of a "legal monopoly."
Governments grant these temporary monopolies to reward innovation and encourage research and development (R&D).

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Market structures are classified based on the number of firms, barriers to entry, and nature of products.
These structures range from Perfect Competition (many firms, no barriers) to Monopoly (single firm, high barriers).

Step 2: Detailed Explanation:
A patent is a legal right granted by a government to an inventor.
It provides exclusive rights to manufacture, use, and sell a new invention or process for a specified number of years (typically 20 years).
During this period, other competitors are legally prohibited from producing the same product or using the same production process.
This creates a powerful, state-enforced legal barrier to entry.
Because no other firm can enter the market to sell the patented item, the patent holder becomes the sole supplier of that commodity.
A market with a single seller and no close substitutes is defined as a Monopoly.
Thus, patent rights directly lead to a monopoly market structure.

Step 3: Final Answer:
The correct option is (A).