Competitive markets with no external costs or benefits and no government price ceilings, floors, taxes or subsidies ________ efficient. According to the "It's not fair if the rules aren't fair" idea of fairness, competitive markets ________ fair.
A: are; are
B: are; are not
C: are not; are
D: are not; are not
发布时间:2024-04-06 23:53:45