If you think that you know how to work a sale, are a pro at salary negotiations, and got a great deal on your latest car purchase -- well, maybe you are. Or maybe you've been fooled. Maybe you only think you got a great deal. In this segment, we'll talk with William Poundstone, author of the new book "Priceless," about the psychology of pricing. From that shirt on sale for $19.99, marked down from $53, to that carton of eggnog ice cream that seems to get a little smaller each year, we'll talk about the psychological tricks that retailers use to try to get you to pay more than you might want to.
Produced by Charles Bergquist, Director and Contributing Producer