Many state-run industries that were privatized after the break up of the soviet union failed because

owners kept the profits after selling the operation’s assets
they could not get necessary raw materials in winter
the government could not get inflation under control
they lacked workers because many were regularly ill

the government could not get inflation under control

Explanation:

    The final disintegration of the USSR apparently began when, in 1985, Communist Party Secretary General and Soviet Union leader Mikhail Gorbachev launched his perestroika, an ambitious program of reform of the Soviet system.

    Several measures had to be taken. First, the prices of goods had to be released so that supply and demand could drive production and end all shortages of goods. Next came the task of privatizing all state-owned enterprises, including giant monopolies. Third, the need to privatize agricultural land, fragmenting the huge Soviet collective and state farms. Fourth, the need to privatize not only all retail outlets but all types of housing and housing. Finally, to stabilize the currency, the huge budget deficits stemming from heavy state subsidies to inefficient companies had to be eliminated. These were the tasks of the reformers.

    At the same time, non-essential products, whose prices had been released, quickly emerged on the market. With prices soaring, the inflation rate exceeded 20% per month, and the ruble depreciated from 120 to 400 rubles / dollar.

an angle + its complement = 90 degrees