But at the moment, it still has that buzzy balance that is brewed up when a fast food joint is adjacent to a dollar store that is next door to a hip, new restaurant.

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One wall of a Dollar General store collapsed, and the roof was torn off.

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It looked like Elmo, but a little off, the way a dollar-store sandwich cookie sort of tastes like an Oreo.

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In contrast, for every dollar spent at a chain store, only 14% of the revenue stayed in the local community, mostly in the form of payroll.

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In time, a globally traded yuan could emerge as a store of value on par with the dollar, euro and yen.

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So he is confident that Dollar General will maintain a 5% comparable-store sales gain largely due to its price advantage over Wal-Mart.

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Though the price still fluctuates against the dollar, it is less volatile than it was, which makes it a better store of value.

ECONOMIST: Bitcoin