身边的经济学·社会常识英语30篇（4）
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Public Goods and Shared Responsibility
公共品与共同责任
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Clean air and street lighting are examples of public goods.清洁空气和街道照明是公共物品的例子。
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No one can be excluded from using them easily or fairly.任何人都难以或公平地被排除在使用它们之外。
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Markets rarely supply enough public goods on their own.市场通常无法单独提供足够的公共物品。
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Taxes fund roads, libraries, and disease control programs.税收为道路、图书馆和疾病防控项目提供资金。
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Free riders benefit without paying, so rules ensure fairness.搭便车者不付费却获益，因此需要规则来保障公平。
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Trust grows when people see others also contributing fairly.当人们看到他人也在公平贡献时，信任便会增强。
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Long-term planning keeps public goods working for everyone.长期规划确保公共物品持续惠及所有人。
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Strong institutions help manage shared resources well over time.强有力的制度有助于长期有效管理公共资源。