Ch.10 · Risk Measures and Ratios · hard
What is 'modified duration' and how does it differ from Macaulay duration?
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EXPLANATION
Macaulay duration is the weighted average time to receive a bond's cash flows (in years). Modified Duration = Macaulay Duration / (1 + YTM/n). It directly measures the sensitivity of bond price to interest rate changes — a modified duration of 5 means a 1% rise in rates causes approximately a 5% fall in bond price. This is the key practical risk measure for debt funds.
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