Wyoming, Ohio, officer Don Campbell invented a light-up traffic safety vest in his basement with duck tape and wire ties. Now ...

Woods was wearing a vest and had a flashlight on him, but was still struck at the scene of a crash late one night. Maybe the neon green reflective vests aren't cutting it, Campbell thought.

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations ...