More productive is subjective. There is a lot of private capital spent on inane stuff. Also "central planning" is too broad a stroke. Are we talking about nati

More productive is subjective. There is a lot of private capital spent on inane stuff. Also "central planning" is too broad a stroke. Are we talking about national central planning, i.e. government programs or are we also going to include central planning in corporate hierarchies, household hierarchies, software design or even things like activities directors in retirement facilities. All valid ways of describing centralized planning. Centralized planning is neither big nor small, you can have it at almost any level & it's success depends on the people involved. Which is why the vague statement made by the OP is somewhat confusing.