A recruiter for Cigna greets a job seeker at a career fair in Philadelphia over the summer. Mark Makela /Reuters /Landov hide caption

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Thousands descended on a job fair in Shanghai earlier this year. This summer nearly 7 million people graduated from Chinese colleges, but jobs are harder to find than in previous years. Frank Langfitt/NPR hide caption

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The scene at a career fair in San Francisco on May 30. Justin Sullivan/Getty Images hide caption

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A man interviews for a job in Detroit. The unemployment rate for black Americans in Michigan was 18.7 percent in 2012, more that twice the rate for whites in the state. Paul Sancya/AP hide caption

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Enzo Vizcaíno, a 24-year-old unemployed Spaniard, isn't singing for his supper. He just wants a job. mrenzovic/youtube.com hide caption

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Looking for work: The scene at a job fair in New York City earlier this year. Figures on job growth and unemployment in April are due Friday morning. Shannon Stapleton /Reuters /Landov hide caption

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In Denver last month, a recruiter (right) talked with a job seeker at a health care career fair. There was job growth in April, according to a new survey, but the pace was modest. Rick Wilking /Reuters /Landov hide caption

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Amelia Schabel, 23, works with art director Andrew LaBounty at the nonPareil Institute in Plano, Texas. Courtesy of nonPareil hide caption

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