An Empirical Analysis of a Book's Price/Ranking Relationship on Amazon.com
There are a number of factors that a consumer takes into account when considering an online purchase. Not only are they looking for a product to fill a need, but they often want one that will "Best" fill it based upon the criteria they use to define that word: price, quality, popularity and so on. With some products, it is possible to stand out from similar items by adding features not found elsewhere. With other products, such as technology books on one particular topic, it is much more difficult to stand out in what could be considered an almost homogeneous market.