The U.S. workforce is shrinking, but that's not because Americans in their prime working years are dropping out.
FORTUNE -- Where have all the workers gone?
The U.S. labor force has dropped by six million. Workers began to disappear during the Great Recession, but it has continued even after the economy has improved. So what's going on?
One answer is demographics. Back in 2006, a paper from a number of Fed economists, predicted MORE
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