What is your general opinion of the State Owned Enterprises?

Do you think that the commanding heights of the economy should, to some large extent, be under state control? Is this, in your opinion, good for economic reasons or because you think that they serve to promote objectives that are not strictly economic, like national security or social stability?

Or do you think they are inefficient and should be mostly privatized? Or perhaps that they were/are beneficial in the past and today, but perhaps should be privatized in the future when China is even more developed?