Which of the following is the best example of a public good?
A) national defense
B) a Ford Thunderbird
C) Yosemite National Park
D) a Mountain Dew
E) satellite radio

Question

Quizplus · Accepted Answer

A public good is something that is non-rivalrous and non-excludable, meaning that one person using it does not prevent others from using it and it is difficult to exclude someone from using it. National defense fits this definition because everyone in the country benefits from it and it is difficult to prevent anyone from benefiting. The other options are either rivalrous (such as the Ford Thunderbird, which can only be driven by one person at a time) or excludable (such as satellite radio, which requires a subscription to access).

Which of the Following Is the Best Example of a Public