V2EX inelasticity

Inelasticity

释义 Definition

(需求或供给的)缺乏弹性;非弹性:指价格或其他因素变化时,需求量或供给量变化幅度很小的特性。在经济学中常用来描述需求缺乏弹性(inelastic demand)供给缺乏弹性(inelastic supply)。(该词在不同语境下也可泛指“缺乏伸缩性/柔韧性”。)

发音 Pronunciation

/nlststi/

例句 Examples

The inelasticity of demand for insulin means many patients keep buying it even when the price rises.
胰岛素需求的非弹性意味着即使价格上涨,许多患者仍会继续购买。

Because of the short growing season and limited farmland, the region’s food supply shows inelasticity in the short run, so small shocks can cause big price swings.
由于生长季短且耕地有限,该地区的食品供给在短期内呈现缺乏弹性,因此小的冲击也可能引发价格大幅波动。

词源 Etymology

inelasticity 来自形容词 inelastic(“无弹性的”),由前缀 in-(表示否定,“不”)+ elastic(“有弹性的”)构成;再加名词后缀 -ity(表示性质、状态),整体意思就是“不具弹性的性质”。在经济学语境中,“弹性(elasticity)”被用作衡量“变量对变化的敏感程度”的术语,因此 inelasticity 常指“对价格等变化不敏感”。

相关词 Related Words

文学作品 Literary Works

  • Adam Smith The Wealth of Nations(《国富论》):讨论价格、需求与市场反应等主题时常涉及“对价格变动反应不强”的概念(现代术语 inelasticity 多为后世经济学体系化表达)。
  • Alfred Marshall Principles of Economics(《经济学原理》):系统阐述“弹性/缺乏弹性”的分析框架,是与 inelasticity 概念高度相关的经典经济学著作。
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