Amazon is a logistics beast - A detailed teardown

But now that you know the story behind the story, you can see that inventing Item Authority and the other elements of Amazon’s third-party seller program—and then simplifying them for the benefit of every user of the platform—was far from easy.

“Uber, the world’s largest taxi company, owns no vehicles. Facebook, the world’s most popular media owner, creates no content. Alibaba, the most valuable retailer, has no inventory. And Airbnb, the world’s largest accommodation provider, owns no real estate.”