The Saltire, the flag of Scotland, flies near the Union Jack in Gretna in Scotland. Some economists say Thursday's vote on Scotland's independence could have wide-ranging economic impacts. Andy Buchanan/AFP/Getty Images hide caption

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People wait to sign up for unemployment Sept. 3 at the Atlantic City Convention Center in Atlantic City, N.J., where thousands of workers at the closing Revel and Showboat casinos recently were laid off. Mel Evans/AP hide caption

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People attend a hiring fair for veterans in Fort Lauderdale, Fla., July 16. About 7.5 million people in the U.S. are working less than 40 hours per week even though they want full-time jobs. Alan Diaz/AP hide caption

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Assembly-line workers at the Chrysler plant in Sterling Heights, Mich. The economy is getting good marks in the latest data, but some worries about the job market continue. Paul Sancya/AP hide caption

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Federal Reserve Chair Janet Yellen testifies before the Senate Banking Committee on July 15. She said the Fed is likely to keep interest rates low "for a considerable period" since inflation remains so tame. J. Scott Applewhite/AP hide caption

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