James Carney, Senior Vice President of Worldwide Corporate Affairs at Amazon, speaks to EU officials on February 1, 2018 in Brussels, Belgium. Thierry Monasse | Corbis News | Getty Images Amazon was marketing a collection of speeches and writings by President Xi Jinping on its Chinese website about two years ago when Beijing was issuing an edict, according to two people familiar with the incident. The American e-commerce giant no longer has to allow customer ratings and reviews in China. A negative review of Xi’s book sparked demand, said one of the people. “I think the problem was all below...