Let’s start with a question: How much of your portfolio is stashed in foreign stocks?If you’re like most Americans, you probably said “about 17%.” That’s the amount of total U.S. investment in foreign issues.But now for the really important question: Is that enough?

Well, is it?
Not according to Dr. Jeremy Siegel of the Wharton School of Business. He’s earning notoriety by telling U.S. investors to put up to 40% of their portfolios into foreign stocks. That’s right. 40%!

And though Berkshire Hathaway Vice Chairman Charlie Munger has had some fun at Siegel’s expense, calling him “demented,” I think Dr. Siegel is spot-on in this regard.

Well, maybe not spot-on — 40% may be a bit high. But this is America, darn it! If we don’t use hyperbole, we just get ignored …

It’s Time to Go Global