In a recent interview with MarketWatch.com Prof. Jeremy Siegel says that as the aging baby boomers retire in the next 20-40 years, stocks could suffer a meltdown, unless investors from developing nations step-up and buy the equities that the boomers are selling. Is this scenario possible?

Donald Luskin, on the other hand, suggests that investors should ignore the doomsday prophets and invest in equities (which he says are really cheap).

I don’t know which of these arguments will turn out to be true. But I do believe that if I buy pieces of good businesses at decent prices for a diversified portfolio, I am likely to do just fine.