The Dow finally hit 20,000.  I wouldn’t ordinarily put much importance on an arbitrary milestone (see The Dow 20,000...Should We Care?), but the long hover just below this level was extraordinary.  This is not to say that markets need behave in any predictable manner.  Daily movements of the market tend to behave like random walks, and random walks commonly...

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“Dow 20,000”

Those two words encapsulate three concepts: 1) the Dow is a relevant economic indicator; 2) 20,000 is a noteworthy milestone; 3) special consideration should be given to investing at all-time highs.  I’ll examine each in turn...

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