It is probably not well known in the West that one of the main economic “killer” of the USSR was the “Conversion” program undertaken by Mikhail Gorbachev in 1987-1991.
The state decided to establish the civilian productions at military plants and invested about $ 8 billion in this venture. Of course, the specialists were not asked what kind of products it is better to produce at which plant.
Orders from above came from GOSPLAN (Ministry of the Central Planning). The result was terrible. The entire system of checking of military products was broken, highly qualified personnel was sucked, the development of new weapon stopped, many state secrets were stolen and sold.
Manufactured civilian products were originally very high quality, but cost ten times more than the best Western substitutes.
To crown it all, the top managers of the bank via which the financing was carried out stole the rest of the money when the USSR collapsed.