Tom,
Below are the definitions of socialism and communism. The USSR aspired for Communism, and it was their official doctrine, but they never attained pure communism. They were a socialist state, as the US is also becoming gradually.
By the way, unions take control of the means of production by imposing restrictions through binding contracts and arbitration, sometimes enforced by the government or by the union itself, through strikes.
Main Entry: so·cial·ism
Pronunciation: \ˈsô-shə-ˌli-zəm\
Function: noun
Date: 1837
1: any of various economic and political theories advocating collective or governmental ownership and administration of the means of production and distribution of goods
2 a: a system of society or group living in which there is no private property b: a system or condition of society in which the means of production are owned and controlled by the state
3: a stage of society in Marxist theory transitional between capitalism and communism and distinguished by unequal distribution of goods and pay according to work done
Main Entry: com·mu·nism
Pronunciation: \ˈkäm-yə-ˌni-zəm, -yü-\
Function: noun
Etymology: French communisme, from commun common
Date: 1840
1 a: a theory advocating elimination of private property b: a system in which goods are owned in common and are available to all as needed
2capitalized a: a doctrine based on revolutionary Marxian socialism and Marxism-Leninism that was the official ideology of the Union of Soviet Socialist Republics b: a totalitarian system of government in which a single authoritarian party controls state-owned means of production c: a final stage of society in Marxist theory in which the state has withered away and economic goods are distributed equitably d: communist systems collectively
Here are two other terms:
Main Entry: cap·i·tal·ism
Pronunciation: \ˈka-pə-tə-ˌliz-əm, ˈkap-tə-, British also kə-ˈpi-tə-\
Function: noun
Date: 1877
: an economic system characterized by private or corporate ownership of capital goods, by investments that are determined by private decision, and by prices, production, and the distribution of goods that are determined mainly by competition in a free market
Main Entry: free market
Function: noun
Date: 1897
: an economic market operating by free competition
This is the most efficient form of economy, but it has no interference from government, and allows for the formation of monopolies and allows some people to become very rich and others to become destitute. Gradually, our government has put layers of control on our free market economy which has made it inefficient.