First of all, China is an authoritarian government, not a communist government. Second of all, China is doing this because they are suffering from [hidden] massive outflow, and need to clamp down on that. The Chinese economy is slowly collapsing from all the malinvestments, and the rich folks are trying to get their money out. Look at the richest man in China, Wang Jianlin, unable to leave China
https://www.bloomberg.com/news/articles/2017-08-28/wanda-bon...