Of the various ways of organizing economic systems, one can see two extremes: anarcho-capitalism and communist command economies. Anarcho-capitalism would privatise everything and abolish the state. A communist command economy would abolish most private property and plan production of commodities centrally. In the middle, we have the modern mixed economy, where there is a very large space for private production of commodities and private property, but where regulation restricts production and property rights, and where the state intervenes with monetary and fiscal policy, as well as social security and other public goods.
The modern neoliberal/neoclassical system we have had since the early 1980s would be to the left of centre. I would put the neoclassical synthesis Keynesian system many countries had from 1945–1979 in the middle. A Post Keynesian system would probably be slightly right of centre.
Some nations like Japan, South Korea and Taiwan after 1945 had a higher degree of planning than even mixed economies, through their highly successful industrial policy, and would be even more to the right of the centre on the line below.