The Schubach Aviation Challenger 601 is in flight. Schubach’s flight hours increased more than 20 percent in July 2012 compared with July 2011.

The Schubach Aviation Challenger 601 is in flight. Schubach’s flight hours increased more than 20 percent in July 2012 compared with July 2011.

Economists measure many factors, from building permits to help-wanted advertising, to assess the health of the overall economy...

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