From the Wikipedia:
"A self-managed, decentralized planned economy, is based upon autonomous self-regulating economic actors and a decentralized mechanism of allocation and decision-making. Historically, this manifested itself in proposals for worker-cooperatives and bottom-up planning through workplace democracy. A degree of self-management was practiced in the economic system of the Socialist Federal Republic of Yugoslavia, which contrasts to the centralized planning of enterprises in Soviet-style planned economies.
One such system is the cooperative economy, a largely free market economy in which workers manage the firms and democratically determine remuneration levels and labour divisions. Productive resources would be legally owned by the cooperative and rented to the workers, who would enjoy usufruct rights.
Another form of decentralized planning is the use of cybernetics, or the use of computers to manage the allocation of economic inputs. The socialist-run government of Salvador Allende in Chile experimented with project cybersyn, a real-time information bridge between the government, state enterprises and consumers.
Another, more recent, variant is participatory economics, wherein the economy is planned by decentralised councils of workers and consumers. Workers would be remunerated solely according to effort and sacrifice, so that those engaged in dangerous, uncomfortable, and strenuous work would receive the highest incomes and could thereby work less.
A contemporary model for a self-managed, non-market socialism is Pat Devine's model of negotiated coordination. Negotiated Coordination is based upon social ownership by those affected by the use of the assets involved, with decisions made by those at the most localized level of production.
Michel Bauwens identifies the emergence of the open software movement and peer-to-peer production as a new, alternative mode of production to the capitalist economy and centrally-planned economy that is based on collaborative self-management, common ownership of resources, and the production of use-values through the free cooperation of producers who have access to distributed capital.
Anarchist communism is a theory of anarchism which advocates the abolition of the state, private property, and capitalism in favor of common ownership of the means of production,direct democracy and a horizontal network of voluntary associations and workers' councils with production and consumption based on the guiding principle: "from each according to his ability, to each according to his need".
De-centralized planning is associated with the political movements of social anarchism, anarcho-communism, Trotskyism, council communism, left communism and democratic socialism." (http://en.wikipedia.org/wiki/Self-managed_economy)