An excerpt from: https://pluralistic.net/2023/04/25/greedflation/ Amazon binds its sellers over to something called Most Favored Nation status. That means that sellers can't offer their goods more cheaply than they do on Amazon – even if it costs them (lots) less to sell in Target or direct from their websites. This means that every time a seller adds a dollar to their Amazon sale price, they have to add a dollar to…
Demanding the lowest price does not harm consumers. Overstock, Wayfair, Walmart and others do the same thing. The result is the lowest price for a given product on all sites. This is unquestionably good for consumers.
If the price is higher then the fault is simply that of the seller for raising it. All e-commerce sites want the lowest price for their customers. Of course, people don't see nuance and just see BigCompany bad.