V2EX adverse selection

Adverse Selection

释义 Definition

逆向选择:在信息不对称的情况下,掌握更多信息的一方(通常是卖方或投保人、借款人等)更可能做出对另一方不利的交易选择,导致“高风险者更愿意参与、低风险者退出”,从而使市场质量下降、成本上升。常见于保险、信贷、二手车市场、劳动力市场等。

发音 Pronunciation (IPA)

/d.vs slk.n/

例句 Examples

Adverse selection can raise insurance premiums.
逆向选择会推高保险保费。

When customers know more about their risk than the insurer does, adverse selection may cause low-risk people to leave the market, making the remaining pool riskier.
当客户比保险公司更了解自身风险时,逆向选择可能导致低风险人群退出市场,使留下来的群体风险更高。

词源 Etymology

adverse 源自拉丁语 adversus(“不利的、相反的”),表示对某方不利;selection 来自拉丁语 selectio(“挑选、选择”)。合在一起强调一种“不利的选择结果”:市场并非随机吸引参与者,而是更容易吸引对交易另一方更不利的人群。

相关词 Related Words

文学作品 Literary Works

  • George A. Akerlof, “The Market for ‘Lemons’: Quality Uncertainty and the Market Mechanism”(经典论文,讨论二手车市场中的逆向选择)
  • Joseph E. Stiglitz & Andrew Weiss, “Credit Rationing in Markets with Imperfect Information”(经典论文,讨论信贷市场中的逆向选择/信息不完全导致的配给)
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