In spite of being a free market supporter, I think that command economies have been useful at times, e.g. the PRC and the USSR in their early stages. Both these countries practiced something similar to what Chile tried, in the 70's and early 80's. My theory is that before communism these countries were practicing a a very corrupt state capitalism. So a logical step before capitalism, was to rationalize state capitalism by making government decisions based on utilitarian goals instead of corruption.
EDIT: modified my request for title change after I read the original title more carefully.