But Amazon is wise to that: they have a "most favored nation" rule that punishes suppliers who sell goods more cheaply in rival stores, or even on their own site. The punishments vary, from banishing your products to page ten million of search-results to simply kicking you off the platform. With publishers, Amazon reserves the right to lower the prices they set when listing their books, to match the lowest price on the web, and paying publishers less for each sale.