Vaun

Grantham: Expect 11% Annual Return from Quality U.S. Equities, Outperformance from Emerging Market Bonds

That's rather misleading... saying the "best" of the US market has a 90% probability of a real return between 4 and 16% according to your metrics and assumptions is a far less powerful headline. If anything could be gleaned from this - the numbers say that you should be invested internationally.