Stock prices are still far too low

 is the title of an influential 1999 article by Kevin A. Hassett and James K. Glassman. They would go on to present an extended view of the topic in their 1999 book, Dow 36,000.

The opinion piece stated that: It should be noted that in 2004 Siegel stated "Now, one thing I should make very clear, I never said that [my chart on comparative standard deviations of stocks and bonds] means stocks are safer in the long run."
 * Investors are ignoring the old shibboleths and pricing companies like Gillette at a P/E of 64 or Microsoft at a P/E of 66. This reflects not their nuttiness but their sanity.
 * Investors today are rationally exuberant. They are bidding up the prices of stocks because stocks are a great deal. Dow 10,000 is just for starters.
 * Extensive research by Jeremy Siegel of the University of Pennsylvania’s Wharton School has found that over 20 years and more, stocks are no more risky than Treasury bonds or even bills.