America's unemployment rate -- most recently reported as 6.1 percent -- has long been used to gauge the country's economic well-being. But a new working paper highlights the difficulty in estimating the exact unemployment rate.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/_...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/_...