Fisher-Weil duration: Difference between revisions
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imported>Doug Williamson m (Spacing 27/8/13) |
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''Risk management''. | ''Risk management''. | ||
Duration calculates the weighted average timing of the cashflows of an instrument, weighted by the present values of the cashflows. | Duration calculates the weighted average timing of the cashflows of an instrument, weighted by the present values of the cashflows. | ||
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Macaulay’s duration assumes a flat yield curve - in other words the same yield (to maturity) for all maturities of cashflow. | Macaulay’s duration assumes a flat yield curve - in other words the same yield (to maturity) for all maturities of cashflow. | ||
Fisher-Weil duration is a refinement of Macaulay’s duration which takes into account the term structure of interest rates.Fisher-Weil duration calculates accordingly the present values of the relevant cashflows (more strictly) by using the zero coupon yield for each respective maturity. | Fisher-Weil duration is a refinement of Macaulay’s duration which takes into account the term structure of interest rates. | ||
Fisher-Weil duration calculates accordingly the present values of the relevant cashflows (more strictly) by using the zero coupon yield for each respective maturity. | |||
This refinement is particularly important when the cash flows are longer term and when yields vary significantly for different maturities. | This refinement is particularly important when the cash flows are longer term and when yields vary significantly for different maturities. | ||
== See also == | == See also == | ||
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* [[Macaulay duration]] | * [[Macaulay duration]] | ||
* [[Yield curve]] | * [[Yield curve]] | ||
Revision as of 14:06, 27 August 2013
Risk management.
Duration calculates the weighted average timing of the cashflows of an instrument, weighted by the present values of the cashflows.
Two forms of the duration measure are Macaulay's duration (which is simpler) and Fisher-Weil duration (which is more refined).
Macaulay’s duration assumes a flat yield curve - in other words the same yield (to maturity) for all maturities of cashflow.
Fisher-Weil duration is a refinement of Macaulay’s duration which takes into account the term structure of interest rates.
Fisher-Weil duration calculates accordingly the present values of the relevant cashflows (more strictly) by using the zero coupon yield for each respective maturity.
This refinement is particularly important when the cash flows are longer term and when yields vary significantly for different maturities.
