Allstate Corp. said that later this year it will launch products aimed at parents who want to monitor the driving of their teenagers, who are expensive to insure as drivers. In return for allowing the insurer to install a monitoring device, motorists become eligible for additional discounts if they drive safely. Allstate's device, which it introduced in 2010, is called Drivewise. "We're going to do something with teen drivers so you can actually know where your kids are if they're driving," CEO Tom Wilson said at the Sanford C. Bernstein 29th Annual Strategic Decisions Conference in New York.