[logicchains]

>In the middle you have a situation where there is free enterprise, but as a cooperation you also have to play by the rules that were set up to maintain fair competition and avoid centralisation of power.

The middle situation faces the potential of http://en.wikipedia.org/wiki/Regulatory_capture. This state-enforced monopoly is a small-scale manifestation of the complete state monopoly associated with 100% state ownership. The only way to completely avoid regulatory capture is to have no regulatory agencies, but this of course brings troubles of its own. There's no perfect middle.

[microtonal]

Sure. First of all, in all systems averse effects can happen. Secondly, regulatory capture is countered by democracy and transparency. If politicians become corrupted, you vote them away. In capitalism without regulation, there is no good way for citizens to intervene (except through violence).

[logicchains]

How's voting the corrupt politicians away working in practice in the US? From what I hear, not very well.