V2EX expected loss

Expected Loss

定义(中文) / Definition (ZH)

Expected loss 指“预期损失”:在不确定性情境下(常见于金融、保险、风险管理与机器学习),基于发生概率损失大小的平均结果,对未来可能损失的统计期望长期平均水平的估计。该术语在信用风险中也常写作 EL,通常可理解为“平均会亏多少”。

发音(IPA) / Pronunciation (IPA)

/kspktd ls/

例句 / Examples

The expected loss is $200 this month.
这个月的预期损失是200美元。

If default rates rise, the bank will increase reserves to cover the expected loss on its loan portfolio.
如果违约率上升,银行将增加拨备以覆盖贷款组合的预期损失。

词源(中文) / Etymology (ZH)

expected 来自动词 expect(期待、预期),源于拉丁语 expectare(等待、盼望、预见);loss 来自古英语 los(毁灭、损失)。合在一起,expected loss 字面即“预先估计的损失”,后在风险管理与统计/机器学习中固定为一个专业概念。

相关词汇 / Related Words

文学与著作中的用例 / Literary & Notable Works

  • Risk Management and Financial Institutions(John C. Hull)在信用风险与拨备讨论中使用 expected loss 概念。
  • Options, Futures, and Other Derivatives(John C. Hull)在风险度量与期望/损失类表述中出现相关用法。
  • 巴塞尔银行监管文件(Basel Committee on Banking Supervision,如关于信用风险与会计准则衔接的材料)频繁使用 expected loss (EL) 作为监管与计量术语。
  • IFRS 9(国际财务报告准则第9号:金融工具)相关解读与指南以 expected credit loss(预期信用损失)框架系统使用该术语。
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