170 likes | 274 Views
The Time Value of Money. Objectives. To stress that the time value of money is an integral part of financial decision making. To discuss compounding techniques To discuss discounting techniques. Future Value.
E N D
The Time Value of Money Richard MacMinn
Objectives • To stress that the time value of money is an integral part of financial decision making. • To discuss compounding techniques • To discuss discounting techniques Richard MacMinn
Future Value • Suppose you place $100 in a savings account that pays 7.2% interest, compounded annually. How does the account grow? • fv1 = 100 (1.072) • fv2 = 100 (1.072)2 • fvT = 100 (1.072)T Richard MacMinn
Future Value • The future value of a one dollar stream of savings for n years, i.e., one dollar saved at dates t = 1, 2, . . . , T, is Richard MacMinn
Future Value • If a dollar is compounded m times per period then the future value may be expressed as Richard MacMinn
Future Value • As m approaches infinity, the factor where e = 2.71828 • Given continuous compounding, the future value of a dollar n periods hence is Richard MacMinn
Present Value • A dollar today is worth more than a dollar tomorrow! • Present value is the inverse of future value. Richard MacMinn
Present Value • The present value of a dollar received in one year is • The present value of a dollar received in T years is Richard MacMinn
Present Value • The present value of a stream of one dollar returns received at dates t = 1, 2, . . . , T is Richard MacMinn
Annuity • An annuity is a stream of equal dollar returns for a specified number of periods, e.g., pension funds, insurance contracts, sinking funds. • The value of a T year annuity that pays one dollar per year is Richard MacMinn
Annuity • Loans paid off in equal installments over a fixed period are annuities, or equivalently, amortized loans. • The value L of the of the amortized loan is Richard MacMinn
Perpetuity • A perpetuity is an annuity payable indefinitely. • The present value of an indefinitely long one dollar stream is Richard MacMinn
Growing Perpetuity • A growing perpetuity is a perpetuity with a payment that grows at a constant rate g. • The payment stream may be specified as 1, (1 + g), (1 + g)2, (1 + g)3, . . . , and its value as Richard MacMinn
Annuity Again • The present value of an annuity is • This is the difference between a perpetuity that begins paying at t = 1 and one that begins paying at t = T + 1. Richard MacMinn
Bond Value • A bond that pays a level interest stream and then the principal at maturity is a combination of an annuity and a single payment. • Bonds also typically pay interest semiannually and the bond value B is Richard MacMinn
Links • QUICKEN FINANCIAL PLANNER Extensive planning software http://www.quicken.com/ • RETIRE SECUREPrice Waterhouse Cooper's retirement aidhttp://www.pwcglobal.com/ • S&P PERSONAL WEALTH Standard & Poor's asset allocation modelhttp://www.personalwealth.com/ Richard MacMinn
Links • T. ROWE PRICE Good, simple ''what if'' program http://www.troweprice.com • VANGUARD Solid online retirement planning http://www.vanguard.com Richard MacMinn