Foreign companies that aspire to do business in China face a host of challenges. Yahoo’s exit from China and Microsoft Corp’s decision to shut down LinkedIn shows how tough the business environment and regulatory requirements are in the country. However, Amazon has managed to quietly boost its business in China. According to an investigation by Reuters, the company’s success in the country has largely to do with how it cooperated with the Chinese Communist Party. About two years back, Amazon received an order from Beijing while promoting a series of President Xi Jinping’s speeches and writings on its Chinese website....