2. 职称英语
  3. If lighthouses are public goods, then free markets would______.A、create a lighth

If lighthouses are public goods, then free markets would______.A、create a lighth

游客2025-06-20  11
问题 If lighthouses are public goods, then free markets would______.
选项 A、create a lighthouse monopoly
B、provide the optimal number of lighthouses
C、provide more than the optimal number of lighthouses
D、provide less than the optimal number of lighthouses
答案 D
解析 答案为D项。如果灯塔是公共物品，那它的存在将使所有过往船只都能在不支付费用的情况下，利用其功能，这将极大地打击厂商生产灯塔的积极性。因此，没有政府干预的市场对这类商品的供给数量将低于最优数量。故本题选D项。
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