Which of the following is an example of a public good?
A) a delivery truck
B) national defence
C) milk
D) a pizza

Question

Quizplus · Accepted Answer

National defence is an example of a public good because it is non-excludable (people cannot be excluded from its benefits, even if they do not pay for it) and non-rival in consumption (use by one person does not reduce the availability or usefulness for others). A delivery truck, milk, and a pizza are all private goods that can be easily excluded from those who do not pay for them and are rival in consumption (use by one person reduces the availability or usefulness for others).

Which of the Following Is an Example of a Public