Even worse, a customer might have a bad experience with that seller and end up leaving a negative review. And the company’s buyers now had to contend with irate publishers and other manufacturers who wanted to know why used products from small, often unauthorized sellers were being sold directly next to their new wares. This debate would play out gradually over the next few years as Amazon expanded the effort and added both new and used products from third-party sellers to each category. Marketplace, in effect, made it more difficult for the retailers inside Amazon to accomplish the lofty
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