Gold has declined substantially and many commentators believe that the price will go much lower. But will it? The chart below shows the gold price plotted on a semi-log scale from 1968 to 2013, and the year-on-year percentage change of the price expressed in standard deviation terms for a rolling 10-year sample period. What strikes one is that the recent decline is not particularly spectacular in comparison to previous declines, and that the y-o-y percentage change of the price is now minus 2.67 standard deviations (sigma) away from the mean, the lowest that it ever got.
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