身边的经济学·社会常识英语30篇（4）
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Economic Spillovers in Daily Life
经济外溢效应在日常生活中的体现
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Some economic actions affect people far away.
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A factory’s pollution may harm nearby rivers and fish.
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When a city builds a new subway, local shops often earn more.
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Farmers’ crop choices can change food prices nationwide.
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New tech jobs in one region raise housing costs elsewhere.
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These ripple effects are called economic spillovers.
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Governments sometimes tax or regulate to manage them.
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Spillovers show how closely all parts of an economy connect.