This is an article from 2014: https://www.theatlantic.com/business/archive/2014/05/amazon-has-basically-no-competition-among-online-booksellers/371917/ https:/

This is an article from 2014: https://www.theatlantic.com/business/archive/2014/05/amazon-has-basically-no-competition-among-online-booksellers/371917/ https://www.theatlantic.com/business/archive/2014/05/amazon-... At that time, they controlled 65% plus of the online book market. Do you think it is less now? They basically have no competition. A monopoly does not require 100%. For example, the Sherman Antitrust Act defines it as 75%. But, it's obvious that they are a monopolist in this area.