calculated using the January stock price in each year divided by the level of
earnings from the previous year. The bottom left panel shows the dividend/
price ratio, calculated using the dividends from the previous year divided
by the January stock price. These ratios are not adjusted to express them in
real terms, because it is assumed that the same general price index applies
to the earnings or dividend series and the stock price series.
Figure 5.4 illustrates the fact that price/earnings ratios have normally
moved in a range from 8 to about 20, with a mean of 14.5 and occasional
spikes down as far as 6 or up as high as 26. At the beginning of 2000, the
180 CAMPBELL AND SHILLER
Figure 5.3. 10-year Dividend Growth vs. D/P. 10-year Price Growth vs. D/P.