V2EX consumer surplus

Consumer Surplus

定义 Definition

消费者剩余:在某一价格下,消费者愿意为商品或服务支付的最高金额与其实际支付金额之间的差额总和。它常用来衡量消费者从市场交易中获得的“净好处”(福利)。在一些语境中也可扩展到个体或总体的福利分析。

发音 Pronunciation (IPA)

/knsumr spls/

例句 Examples

Consumer surplus increases when the price falls.
当价格下降时,消费者剩余会增加。

By estimating demand, economists can calculate consumer surplus to evaluate how a new tax affects overall welfare.
通过估计需求,经济学家可以计算消费者剩余,用来评估新税收如何影响总体福利。

词源 Etymology

consumer 来自拉丁语 consumere,有“消耗、用尽”之意,后来引申为“消费的人”。surplus 来自法语 surplus(意为“剩余、超出部分”),由 *sur-*(“在……之上”)+ plus(“更多”)构成。合起来 consumer surplus 在经济学中指“消费者获得的超出支付价格的剩余利益”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Alfred Marshall, Principles of Economics(《经济学原理》)
  • N. Gregory Mankiw, Principles of Economics(《经济学原理》)
  • Hal R. Varian, Intermediate Microeconomics(《中级微观经济学》)
  • Paul A. Samuelson & William D. Nordhaus, Economics(《经济学》)
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