V2EX excludability

Excludability

Definition / 定义

Excludability(可排他性):指一种商品或服务是否能够阻止未付费者使用的特性。常用于经济学中区分私人物品公共物品(公共物品通常“不可排他”)。

Pronunciation / 发音

/kskludblti/

Examples / 例句

Excludability makes it possible to charge people for access.
可排他性使得对使用权收费成为可能。

In many cities, toll roads increase excludability by restricting access to paying drivers, which changes how the service is funded and managed.
在许多城市,收费公路通过限制未付费驾驶者进入来提高可排他性,从而改变了服务的筹资与管理方式。

Etymology / 词源

excludability 来自 exclude(排除)+ -ability(……的能力/性质)。其核心含义就是“能够把他人排除在使用之外的性质”。在现代用法中,它作为经济学术语尤为常见,常与 rivalry(竞争性) 一起用于分析物品属性。

Related Words / 相关词

Literary Works / 文学作品与著名出处

  • Paul A. Samuelson 的公共物品理论相关著作(常用“excludability/不可排他性”来界定公共物品)
  • N. Gregory Mankiw《Principles of Economics》(经济学原理教材中以“excludability”区分公共物品与私人物品)
  • Hal R. Varian《Intermediate Microeconomics》(微观经济学教材中用于物品分类与市场机制讨论)
  • Elinor Ostrom 关于公共资源治理的作品(相关章节常讨论“排他/不可排他”与制度安排的关系)
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