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Finance Chpt 2
Time Value of Money
Question | Answer |
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Future Value - formula, definition | FV = P x 〖(1+r)〗^t Future Value - Amount to which an investment will grow after earning interest. |
Distinguish between simple & compound interest | Compound Interest - Interest earned on interest. Simple Interest - Interest earned only on the original investment; no interest is earned on interest. |
Present Value | PV = (FV or C)/ (1 + r)^t = future value (or cash flows) over (1+ discount rate) to the power of t. Present Value - Value today of a future cash flow. |
Distinguish between discount factor and discount rate. | Discount Factor - Present value of a $1 future payment. Discount Rate - Interest rate used to compute present values of future cash flows |
Time Value of Money (applications) | Value of Free Credit Implied Interest Rates Internal Rate of Return Time necessary to accumulate funds |
Perpetuities | Perpetuity - A stream of level cash payments that never ends. e.g., consols PV of perpetuity = c/r C = cash payment R = interest rate |
Annuities | Annuity - Equally spaced level stream of cash flows for a limited period of time. e.g., mortgage, car loan PV of t year’s annuity = C [ (1/r) - (1/(r (1+ r) ^t)) |
Perpetuities & Annuities | Applications Value of payments Implied interest rate for an annuity Calculation of periodic payments Mortgage payment Annual income from an investment payout Future Value of annual payments FV = C [(1/r) - (1/(r (1+ r) ^t)) X (1 + r |
Effective Annual Interest Rate | Effective Annual Interest Rate - Interest rate that is annualized using compound interest (i.e. the rate a which invested funds grow over the course of a year). 1 + EAR =〖( 1+ monthly rate)〗_12 |
Annual Percentage Rate | Annual Percentage Rate - Interest rate that is annualized using simple interest. APR = Monthly rate x 12 |
Inflation | Inflation - Rate at which prices as a whole are increasing. Remember: Current dollar cash flows must be discounted by the nominal interest rate; real cash flows must be discounted by the real interest rate. |
Nominal interest rate | Nominal Interest Rate - Rate at which money invested grows. 1 + real interest rate = (1 + nominal interest rate)/(1+ inflation rate) |
Real interest rate | Real Interest Rate - Rate at which the purchasing power of an investment increases. Real interest rate ≈ nominal int. rate – inflation rate |