Read the articles on How worried should Amazon be about Shein and Temu! Would you say that Amazon is a monopoly, a monopolistically competitive firm, or a firm in oligopoly? What was the most interesting point for you in these articles from The Economist? What do you think about the role of Amazon in the American Economy, and in the global supply chain? Do you think that it is a typical representative of the current global trends? Why, or why not? Please discuss