“Jacobs externality”的概念、定义、翻译、参考文献-科学参考

单词	Jacobs externality
释义	Jacobs externality Encyclopedia 经济学多样化生产释 Jacobs externality雅各布斯外部性不同行业之间发生的知识外溢使相关行为主体或整个社会受益但受益者无须付费的特性，是集聚产生的一种正外部性。因美国记者、作家、城市活动家、学者J.雅各布斯（Jane Jacobs，1916-05-04～2006-04-25）的强调而得名。
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