How does the availability of complementary goods act as a value driver for consumer surplus?

• A. It only affects producer surplus, not consumer surplus.
• B. It decreases consumer surplus by making the primary good less attractive.
• C. It increases consumer surplus by raising the willingness to pay for the primary good.
• D. It has no effect on consumer surplus or willingness to pay.

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the concept of consumer surplus, which is the difference between what consumers are willing to pay for a good and what they actually pay. It measures the net benefit to consumers from purchasing a good.
2. Step 2: Recognize that complementary goods are products that are used together with the primary good, such that the consumption of one increases the value or utility of the other.
3. Step 3: Analyze how the availability of complementary goods affects the consumer's willingness to pay for the primary good. Since the complementary good enhances the overall utility, consumers are willing to pay more for the primary good when the complement is available.
4. Step 4: Connect this increased willingness to pay to consumer surplus. Because consumers value the primary good more due to the complement, the area representing consumer surplus on a demand curve shifts or expands, indicating an increase in consumer surplus.
5. Step 5: Conclude that the availability of complementary goods acts as a value driver by increasing consumer surplus through raising the willingness to pay for the primary good, rather than decreasing it or having no effect.