... Examples of Negative Externalities 负外部性例子 Examples of Positive Externalities 正外部性例子 The Market for Aluminum 铝市场 ...
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examples of positive externalities
正外部性的例子
以上为机器翻译结果，长、整句建议使用 人工翻译 。
When economists discuss rationales for government intervention in introductory economics courses, police services are sometimes offered as examples of goods that produce positive externalities.
FORBES: Pepper Spray Before Profits at UC Davis? Privatize the Police
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