如何计算Bond Duration
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Duration measures weighted average time to receive bond cash flows, approximating interest rate sensitivity: price change ≈ -duration × Δyield.
分步指南
- 1Input bond coupon, yield, maturity
- 2Calculate Macaulay duration (time-weighted)
- 3Derive modified duration (price sensitivity)
例题解析
输入
5% coupon, 10-year bond, 5% yield
结果
Macaulay ≈ 8.2 years, modified ≈ 7.8 years
Modified used for price changes
常见错误注意事项
- ✕Confusing Macaulay and modified duration
- ✕Forgetting duration changes with yield
常见问题
Why duration < maturity?
Earlier cash flows (coupons) weighted in average.
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