d. EX. Your grandmother has offered to give you $1,000 per year for the next 3
years at the end of each year. What is the present value of this 3-year, $1,000
annuity discounted back to the present at 5 percent?
i. Draw a trendline:
ii. PV=1000[(1-(1/(1+.05)^3))/.05] = 2723.25.
iii. Or Pv= 1000/1.05 + 1000/1.05^2 + 1000/1.05^3
iv. Or use Financial calculator
5. Perpetuities: Basically same amount of money continuous forever.
a. A perpetuity is an annuity that continues forever or has no maturity. For
example, a dividend stream on a share of preferred stock. There are two basic
types of perpetuities:
i. Growing perpetuity in which cash ffows grow at a constant rate, g, from
period to period. So it increases by a constant rate, your 100 grows by 5%
every year.
ii. Level perpetuity in which the payments are constant from period to
period. Same payment forever, so 1000 every year.
b. PV of a Level Perpetuity
i. PV = PMT/i
c. PV of Growing Perpetuity
i. PV = PMT (yr 1) / (i-g)
1. PMT1 = PMT0*(1+g)
ii. The Constant Dividend Growth model = P0 = D1/(R-g)
d. Ex. What is the present value of a perpetuity stream of cash ffows that pays $500
at the end of year one but grows at a rate of 4% per year indefinitely? The rate of
interest used to discount the cash ffows is 8%. (PMT1=500, R=8%, i = 4%)
i. 𝑃𝑉 = $500 /(8% − 4%) = $12,500
Chapter 1: The Investment Environment:
1. What is Investment?
a. What is Finance? Finance is the study of (financial) resource allocation over
time and under uncertainty.
b. • An INVESTMENT is the current commitment of money or other resources in
the expectation of reaping future benefits.
i. For example • shares of stock • Insurance premium.
2. Why Invest?
a. Have your money work for you.
i. Your money earns money
ii. Buy something with your money that could increase in value
b. Have a chance to own (parts of) companies.
i. When you buy stock, you are actually buying the ownership of a
company
c. To buff your future risk in consumption
i. Human capital, retirement, education