The discount yield on a T-bill differs from the T-bill's bond equivalent yield (BEY) because I. the discount yield is the return per dollar of face value and the BEY is a return per dollar originally invested. II. a 360-day year is used on the discount yield and the BEY uses 365 days. III. the discount yield is calculated without compounding, and the BEY is calculated with compoundi

the base price used is the face value of the security and not the purchase price of the security and ii) a 360-day year is used. The bond equivalent yield uses a 365-day year and the purchase price, rather than the face value of the security, is used as the base price. Treasury bills are quoted on a discount yield basis.

Explanation:

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