Media accounts of fund managers' prognostications are often mentioned along with their assets under management, as if that were a gauge of how seriously they should be taken.
A more convincing metric is long-run performance, though that is hardly foolproof.
This week, when the largest bond investor, Pimco, and the most productive, Warren Buffett, warned of the dollar's fragility, its value quivered and commodities rallied.
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