 Complete the following phrase:  At the same time, the state shifted to the centralised distribution of the means of production and consumer goods belonging to it, the introduction of command-administrative methods of management and the nationalisation of private property were carried out. A political system emerged based on the leading role of the All-Union Communist Party Bolsheviks, state ownership of the means of production and a minimum of private initiative. Also began the widespread use of forced labor by prisoners of the Gulag, 