From South China Morning Post
The ability of the Chinese government to control is undisputed and unparalleled compared with governments in other countries and, indeed, compared with the Chinese state during imperial times. If the stock market does not go up, then prevent it from going down by shutting it down. If too many investors want to cash out their positions at the same time, just charge them with “malicious intent to sell” and arrest them as proverbial chickens to scare off the monkeys.
The problem is that a government so focused on and obsessed with controls is not one that cares about or is particularly good at establishing credibility. A government needs credibility when it tries to convince others to do its bidding without the ability to dictate actions directly.
In his book, The Courage to Act, Ben Bernanke wrote about how US Federal Reserve officials debated and deliberated long and hard about particular words and phrases, and even about the usage of different punctuation marks, in their communiqués with the public.
The reason is that the effectiveness of the Fed does not depend on its ability to arrest people at will but on how it is perceived by market participants – whether it is perceived as being capable, deliberative and above all credible. If the Fed lost the confidence of the market, much of its influence and leverage would evaporate.