284 Part 3 Financial Assets
assumed average for the economy. The value of this! rm’s stock, like any other asset,
is the present value of its expected future dividends as determined by Equation 9-1.
When Dt is growing at a constant rate, we can simplify Equation 9-1 to Equation 9-2,
Pˆ 0 " D 1 /(rs # g). In the supernormal case, however, the expected growth rate is not a
constant. In our example, there are two distinctly different rates.
Because Equation 9-2 requires a constant growth rate, we obviously cannot
use it to value stocks that are not growing at a constant rate. However, assuming
that a company currently enjoying supernormal growth will eventually slow down
and become a constant growth stock, we can combine Equations 9-1 and 9-2 to
construct a new formula, Equation 9-6, for valuing the stock.
First, we assume that the dividend will grow at a nonconstant rate (generally
a relatively high rate) for N periods, after which it will grow at a constant rate, g.
N is often called the terminal, or horizon, date. Second, we can use the constant
growth formula, Equation 9-2, to determine what the stock’s horizon, or terminal,
value will be N periods from today:
Horizon Value! PˆN!
DN" 1
_____r
s^ $ g
The stock’s intrinsic value today, Pˆ 0 , is the present value of the dividends during the
nonconstant growth period plus the present value of the horizon value:
Pˆ 0!
D 1
_______(1 " r
s)
1 "^
D 2
_______(1 " r
s)
2 "^...^ "^
DN
_______(1 " r
s)
N^ "^
DN" 1
_________(1 " r
s)
N" 1 "^...^ "^
_______D#
(1" rs)#^
PV of dividends during the Horizon value! PV of dividends
nonconstant growth during the constant growth
period, t! 1,... N period, t! N " 1,... #
Terminal (Horizon)
Date
The date when the growth
rate becomes constant. At
this date, it is no longer
necessary to forecast the
individual dividends.
Terminal (Horizon)
Date
The date when the growth
rate becomes constant. At
this date, it is no longer
necessary to forecast the
individual dividends.
Horizon (Terminal)
Value
The value at the horizon
date of all dividends
expected thereafter.
Horizon (Terminal)
Value
The value at the horizon
date of all dividends
expected thereafter.
Illustrative Dividend Growth Rates
F I G U R E 9! 3
Dividend
($)
1.15
Declining Growth, –8%
Zero Growth, 0%
Normal Growth, 8%
Normal Growth, 8%
End of Supernormal
Growth Period
Supernormal Growth, 30%
0 1 2 3 4 5
Years