compounding
process of finding the future value of a single or series of payments. it’s based on periodic interest rates unless using continuous compounding
cash flows
can be positive or negative
for a borrower, the first cash flow is positive and the rest are negative. opposite for a lender
Methods to solve TVM probs
simple vs compound interest
opportunity cost
rate of return you would earn on an alternative investment of similar risk if you don’t invest in the security under consideration
discounting
finding the present value
opposite of compounding
perpetuity
payments of a fixed amount that continue indefinetly
relationship between PV and IR
If interest rates rise, PV declines
if interest rates fall, PV rises
annuity
ordinary/deferred annuity
annuity due
Why should you rather receive an annuity due for $10,000 per year for 10 years than an otherwise similar ordinary annuity?
Because each payment occurs one period earlier with an annuity due, the payments will all earn interest for one additional year. Therefore, the FV of an annuity due will be greater than that of a similar ordinary annuity.
uneven cash flow streams/irregular cash flow streams
cash flows that differ from year to year
-important classes: 1) those where the cash flow stream consists of a series of annuity payments plus an additional final lump sum in year N (ex: bonds) and 2) all other uneven streams (stocks, capital investments)
annual compounding
semiannual compounding
types of interest rates
nominal annual interest rate
rate quoted by banks, brokers, and other financial institutions. must include the number of compounding periods per year.
For ex: a bank might offer you a CD at 6% compounded daily, while a credit union might offer 6.1% compounded monthly.
NEVER PUT IN A CALC UNLESS IT COMPOUNDS ONLY ONCE A YEAR
periodic rate
rate charged by a lender or paid by a borrower each period. It can be a rate per year, semiannually, per quarter, per month, per day, or per any other time interval.
For example: a bank might charge 1.5% per month on its credit card loans, or a finance company might charge 3%
- rate showed on time lines and used in calculations
effective annual rate (EAR)
annual percentage rate (APR)
nominal annual interest rate actually charged on loans
-important for loans that use add-on interest.
what happens to the FV of an investment if interest were compounded some other less-than-annual period?
amortized loan
loan that’s repaid in equal amounts on a monthly, quarterly, or annual basis
amortization schedule
growing annuity
payment breakdown with two parts - part interest and part repayment of principal
-series of amounts either received or paid that grow at a constant rate
effective rates of return
if you’re comparing costs of alternative loans that require payments more than once a year, or rates of return on investments that pay interest more than once a year