One definition for a communist state is this - Quote "a theory or system of social organization in which all property is owned by the community and each person contributes and receives according to their ability and needs."
Which sounds OK, but what if someone does not contribute with their full ability. Australia has a well-developed social welfare system and it's quite apparent that there are welfare 'bludgers' taking advantage of the system. And, even all those with jobs may not give their full energy and ability to the job.
Maybe some humans are geared to be lazy and thoughtless. An owner of a small business with about 12 employees tells me that he wouldn't mind paying the wages and add-ons he has to, if only all his workers would contribute their full energy, especially when he has tight deadlines to meet.
Aristotle, in his book called 'Politics,' thought that there was a 'natural slave class' born to be slaves.
Ancient Greece and Rome were 'slave' economies (and not always very efficient). The slaves effectively got bed and board from their owner who could use them however he wanted ro. Sometimes. I think of those people today who you would not employ, and also those families with 2 or 3 generations on welfare, and wonder if Aristotle was right. ( OK, i know we can pick holes in the theory).
And, I'll leave the Chinese experience for another post.