The "modified duration" used by practitioners is equal to the Macaulay duration

A) times the change in interest rate.
B) times (one plus the bond's yield to maturity) .
C) divided by (one minus the bond's yield to maturity) .
D) divided by (one plus the bond's yield to maturity) .
E) None of the options are correct.

Modified Duration

Macaulay’s duration divided by 1 + yield to maturity. Measures interest rate sensitivity of bonds.

Macaulay Duration

A measure of the weighted average time until all cash flows from a bond are received, used to gauge a bond's interest rate sensitivity.

Yield To Maturity

A measurement of the annual return an investor can expect from a bond if held to its end date, factoring in its price, interest payments, and time to maturity.