Читать книгу Fundamentals of Financial Instruments - Sunil K. Parameswaran - Страница 105

Therefore,

is called the Present Value Interest Factor Annuity (PVIFA). PVIFA(r,N) is the present value of an annuity that pays $1 at periodic intervals for N periods, computed using a discount rate of r%. Thus, like the factors that we studied earlier, it too depends on the interest rate and the number of periods. The present value of any annuity that pays $A per period can therefore be computed by multiplying A by the appropriate value of PVIFA.