中等ECON-MINT-012
Which is the clearest example of a public good?
A. A seat in a private tutorial
B. Street lighting on a public road✓ 答案
C. A bottled drink
D. A cinema ticket
解說
Street lighting is non-rival and non-excludable. A tutorial seat, a bottle, and a cinema ticket are excludable, and the seat and the bottle are rival.