test. two world news producers, one pack of pens on staples.com. the price on her computer. 15.19. and 13.79. that s more than dollar less. take a look at this, world news viewers getting different prices for the same pens. the price of these pens is 13.09. $15.19 in california. reporter: the companies admit it is happening. staples tells us if you find lower price they will match it. it is a pretty wide web. i think a lot of consumers would be surprised to see this going on. i don t think this is fair. it doesn t make sense to me why you would charge me one price and someone else another price. i can t believe a big company would do it. there s no transparency, right. you have no idea this is going on in the background. reporter: be aware that you may be targeted as a working
two world news producers, two one pack of pens on staples.com. the price on her computer. 15.19. and 13.79. that s more than dollar less. take a look at this, world news viewers getting different prices for the same pens. the price of these pen s is 13.09. $15.19 in california. reporter: the companies admit it is happening. staples tells us if you find lower price they will match it. it is a pretty wide web. i think a lot of consumers would be surprised to see this going on. i don t think this is fair. it doesn t make sense to me why you would charge me one price and someone else another price. i can t believe a big company would do it. there s no transparency, right. you have no idea this is going on in the background. reporter: beware you may be targeted as a working with class, soccer mom, fashionista bookworm. rebecca jarvis, abc news.