And there's the reason why, in my original post at the beginning of this sub-thread, I used neither of those terms, in order to communicate more precisely.
Centrally planned economies are inferior to freer economies, whether the top-down controls are imposed by democracy or autocracy; both create economic inefficiencies. History has borne that out repeatedly.
But of course, that statement disregards non-economic externalities like environmental impacts, and one may want a central power to map non-economic externalities onto economic costs through e.g. taxes and fines for polluting because the economic inefficiencies incurred are worth the tradeoff (like having clean water/air). Then the market can price those non-economic externalities accordingly, once the market is appropriately regulated.