2018/10/02: Do airlines use these cost factors to calculate a rational price for my ticket? No. That is determined by Rudy the Fare Chicken, who decides the price of each ticket individually by pecking on a computer keyboard sprinkled with corn.
How might we best research this from our side—the one where humans use browsers and actually buy stuff? Is it possible to figure out how we're being profiled, if at all—and how might we do that? Are there shortcuts to finding the cheapest Amazon price for a given product, among all the different prices it presents at different times and ways on different browsers, to persons logged in or not? Is this whole thing so opaque that we'll never know much more than a damn thing, and we're simply at the mercy of machines probing and manipulating us constantly?