Question

parents who do not have their children immunized and attempt to benefit from other parents who did have their own children immunized are exhibiting an economic behavior known as

a. internalizing an external cost.
b. public rivalry.
c. free riding.
d. excludability.

Explanation:

• Option A: Internalizing an external cost means taking on a cost that was previously external. This is not relevant to the situation of parents not immunizing their children but benefiting from others who did.
• Option B: Public rivalry is not a standard economic term related to this behavior.
• Option C: Free - riding occurs when a person benefits from a good or service (in this case, the reduced risk of disease due to herd immunity from other children being immunized) without paying the cost (immunizing their own child).
• Option D: Excludability refers to the property of a good where it is possible to prevent someone from consuming it. This is not related to the described behavior.

Answer:

C. free riding.