Classical/Marxist conception, where socialism is a stage of economic development in which wage labour, private property in the means of production and monetary relations have been made redundant through the development of the productive forces, so that capital accumulation has been superseded by economic planning. Economic planning in this definition means conscious allocation of economic inputs and the means of production by the associated producers to directly maximise use-values as opposed to exchange-values, in contrast to the "anarchy of production" of capitalism. Walrasian/Market Socialist which defines socialism as public-ownership or cooperative-enterprises in a market economy, with prices for producer goods set through a trial-and-error method by a central planning board.