What were two things severely hurting the soviet economy just prior to its fall?

The two main things that were severely hurting the Soviet economy just prior to its fall was 1) that it was operating under a command basis, meaning that the government was controlling output which led to an improper estimate of demand, and 2) that the country had pushed forward with industrialization too quickly, leaving no room for other industries. 

following type of cultural development caused people to want and buy new products on the market :

industrialization