The CBA itself does not set the policy goals, nor does it determine which case should be chosen.It acts as an useful tool to help the policy makers make their choices and adjustments efficiently.

• 成本-收益分析方法本身并不设定政策目标，也不决定有哪些方案应该考虑，仅仅作为一种有价值的工具，用来帮助政策制订者们有效地进行政策抉择和调整。