`  == Private businesses and importance of the black market ==  I read somewhere (I forget the reference) that Lenin first allowed small private businesses shortly after the Revolution, when the anarchist wing of the Bolshevik Party objected was when he released his essay ``On the Infantile Psychology of Leftism``. Also, that the black market in SU was almost one-third the size of the official economythis is huge. If someone else has the time to track down citations I think they would be valuable additions.   `