| http://www.w3.org/ns/prov#value | - What drives economic mobility? ???I believe that one of the great historical advantages of the United States has been the remarkable mobility of the U.S. workforce,??? says Wharton finance professor Richard J. Herring, referring to workers??? ability to move from one location to another to pursue jobs, education and other opportunities for a better life, making the economy more efficient than if w
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