>Everything (at Amazon and Walmart, at least) is priced by computers that are constantly trying to determine the ideal price that maximize profits. Do you have

>Everything (at Amazon and Walmart, at least) is priced by computers that are constantly trying to determine the ideal price that maximize profits. Do you have a source on this available? I ask due to some second hand retail experience with Wal-Mart specifically, that their pricing contracts lean heavily on pre-determined price points (under $20, etc).