What Is Bond Duration? Price Impact of a 1% Yield Increase
경제 용어 Bond duration is both a cash-flow timing measure and a practical estimate of interest-rate sensitivity. If a bond has a modified duration of 5, a one-percentage-point rise in its yield implies an approximate 5% price decline. That is a first-order estimate, not a promise: the actual move depends on the bond’s coupon, maturity, convexity, credit spread and any embedded options. Information checked September 16, 2026 · Briefing on Money 한국어 · English The answer in brief Macaulay duration measures the present-value-weighted time to receive a bond’s cash flows. Modified duration converts that timing measure into an estimate of price sensitivity. The rule is: percentage price change ≈ -modified duration × change in yield. A 100-basis-point rise means a yield change of 0.01, not 1, in the formula. The relevant input is the bond’s market yield, not ...