Photo Of The Day: Rising Gas Prices

Unlike an iPhone or a pair of jeans or a Big Mac, oil and gasoline are commodities whose prices can change every second.

Gas Prices

In this March 2, 2011 file photo, a gas station attendant raises gas prices on a sign at a station in the Hollywood section of Los Angeles. Unlike an iPhone or a pair of jeans or a Big Mac, oil and gasoline are commodities whose prices can change every second at places like the New York Mercantile Exchange. (AP Photo/Nick Ut, file)

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