Citation? Follow up questions: 1. How much of that is fixed cost that has to be paid (if not by Amazon then by other customers) 2. How does -$1.5/package for Amazon compare to other shippers? E.g. how much does USPS lose on Walmart? My understanding is the USPS is structurally designed to lose money as a subsidy to society for communication/interaction over long distances. I'm fully in favor of revisiting whether tha…
Your second question is the key: the USPS exists to encourage business. It loses money on most, if not all, package plans it has with businesses. It does not seek to gain profit.