Why would bureaucrats and/or supercomputers would have to base it on market information? They could keep bending prices as they see fit. By the fall of USSR, b

Why would bureaucrats and/or supercomputers would have to base it on market information? They could keep bending prices as they see fit. By the fall of USSR, big chunks of black market were becoming legal :) Black market was a massive portion of economy throughout USSR existence though. Some people still buy old good CCCP propaganda. And even questioning fairy tale propaganda is bad for those people.