Leninist conception, which includes a form of political organisation based on control of the means of production and government by a single political party apparatus that claims to act in the interest of the working class, and an ideology hostile toward markets and political dissent, with coordination of economic activity through centralised economic planning (a "command economy"). Social democratic concept, based on the capitalist mode of production, which defines socialism as a set of values rather than a specific type of social and economic organisation. It includes unconditional support for parliamentary democracy, gradual and reformist attempts to establish socialism and support for socially progressive causes.