Standard & Poor's recently shocked investors with an announcement that reported earnings for its S&P 500 Index for the fourth quarter of 2008 are forecast to be negative for the first time since such data were calculated in 1936. S&P further reports that for all of 2008, earnings are expected to be less than $40 per share, indicating that the market now has a price/earnings ratio over 20, well above its historical average of 15.

What this dismal news actually reflects is the bizarre way in which S&P (and most other index providers)...