GMO monthly issues their “7‐Year Asset Class Real Return Forecasts” for 10 – and, beginning this month, 11 – asset classes. Their method is fairly simple: assume that things – P/E ratio, profit margin, sales growth and dividend yield – will revert to “normal” over the next 5-7 years and sketch the line from here to there. The “real” part is that you deduct the effect of inflation from the resulting “nominal” returns.
Several scholars have examined their predictive validity and found it to be pretty robust. One, examining projections from 2000-2010 then comparing them with Vanguard index funds concluded Continue reading
