The Federal Reserve's headquarters in Washington, D.C. What goes on inside there is of intense interest to investors. Karen Bleier /AFP/Getty Images hide caption

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Li-Wen Hung (left) and Whitney Chen were waiting to meet potential employers at a Manhattan job fair earlier this year. Mario Tama/Getty Images hide caption

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Will there be more signs like this? An automotive service shop in El Cerrito, Calif., was looking for workers last month. Justin Sullivan/Getty Images hide caption

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