Give me a hybrid of the social market economy and eco-capitalism any day!
Liberal capitalism's main problem is the tendency of wealth to accumulate at the top, its focus on a quick profit which leads to poor allocation of resources, and, short of a few ethical entrepreneurs, it tends to have little regard for social welfare and protection of the environment.
True communism is unlikely to succeed in the short or long term as it fails to harness the power of human greed (that which powers capitalism so well).
Much as I admire your belief in decentralisation, David, I worry that it might suffer from the same problems as too much centralisation - it risks becoming a tyranny. I'm a centrist (not centralist) through and through - a balance of powers between the centre (national government) and periphery (local government). Means we would, hopefully, not get into the same situation of introducing