Jeremy Siegel's Forecast

The Wharton economist is optimistic:

If post-World War II patterns hold for the future, he calculated last week, prospects for stock investments are excellent: there would be a 96.6 percent probability of a positive return for the next 5 years, going up to 100 percent for 10- and 20-year periods. Average real returns would be stellar — about 11 percent annually in holding periods from 1 to 20 years.