The discount rate refers to the interest rate used when calculating the net present value (NPV) of an investment. It represents the time value of money, which is the concept that a sum of money today ...

When you apply for a mortgage, your lender will probably quote you an interest rate -- say, 4.5%. The problem with the interest rate is that is doesn't usually reflect the true cost of borrowing money ...

Treasury bills are secure, backed by U.S. government, with maturity terms from 4 weeks to 1 year. Pricing of T-bills uses a discount formula: [(days to maturity * interest rate) / 360]. Buy T-bills at ...