Iain M. Banks is a favourite of mine, especially the Culture series. To give an idea of where his head was at, from his essay A Few Notes On The Culture:

Concomitant with this is the argument that the nature of life in space - that vulnerability, as mentioned above - would mean that while ships and habitats might more easily become independent from each other and from their legally progenitative hegemonies, their crew - or inhabitants - would always be aware of their reliance on each other, and on the technology which allowed them to live in space. The theory here is that the property and social relations of long-term space-dwelling (especially over generations) would be of a fundamentally different type compared to the norm on a planet; the mutuality of dependence involved in an environment which is inherently hostile would necessitate an internal social coherence which would contrast with the external casualness typifying the relations between such ships/habitats. Succinctly; socialism within, anarchy without. This broad result is - in the long run - independent of the initial social and economic conditions which give rise to it.

Let me state here a personal conviction that appears, right now, to be profoundly unfashionable; which is that a planned economy can be more productive - and more morally desirable - than one left to market forces.