Sheets of $100 bills wait to be cut into singles at the Bureau of Engraving and Printing in Washington, D.C. In recent decades, the gap between rich and poor has widened in the United States.

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A screengrab shows the Google Wallet app being used to pay for items at a CVS store.

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Although consumer spending is up, consumer confidence is at its worst since March 2009, at the height of the recession.

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Students attend graduation ceremonies at the University of Alabama in Tuscaloosa, Ala. Two-thirds of college students now graduate with debt, owing an average amount of $24,000.

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Sproul Plaza at the University of California, Berkeley. Tuition at U.C. Berkeley was about $700 a year in the 1970s. Today, families pay over $15,000 per year to attend.

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