Government Intervention

Laissez-faire economics

The laissez faire principle expresses the preference for an absence of non-market pressures on prices such as those from government taxes, subsidies, tariffs, regulation (other than protection from coercion and theft), or government-granted or coercive monopolies. As developed in Hayek'sThe Pure Theory of Capital, the goal is the preservation of the unique information contained in the price itself.
Various forms of socialism based on, or which advocate, free markets have existed since the 19th century. Early notable socialist proponents of free-markets include Pierre-Joseph Proudhon,Benjamin Tucker and the Ricardian socialists, who believed that genuinely free markets andvoluntary exchange cannot exist within the exploitative conditions of capitalism.
These proposals ranged from various forms of worker cooperatives coordinated by free markets such as Mutualism (economic theory), to state-owned enterprises competing with each other in open and unregulated markets. These models of socialism are not to be confused with other forms of market socialism, such as the Lange model, where publicly-owned enterprises are coordinated by a degree of economic planning in setting prices for capital goods.

Read more here.