There are undeniably ways in which the command economy is simply more efficient. The party can decide that in 10 years they will be world leader in this or that, put resources toward it, and accomplish that goal. That doesn't mean the Chinese way is best for everyone, and there are certainly humanitarian issues, there are inefficiencies typical of a command economy, and there are unintended consequences, (tofu dreg, etc) but it's undeniable that they're currently getting stuff done.