Market solves a different task - it's calculating prices at the given moment of time. The central planning has to produce a function that will give the price fo

Market solves a different task - it's calculating prices at the given moment of time. The central planning has to produce a function that will give the price for every moment of the plan's duration (the USSR had 5 year planning term). If communists really knew how to do the later they could have used that knowledge to peacefully take over every capitalist country in the world.