Comment by xpe
To make sure we’re on the same page… In economics, “central planning” refers to a system where a central authority (typically the state) makes comprehensive decisions about production, investment, and resource allocation across an entire economy, replacing market mechanisms. This is associated with command economies like the Soviet Union’s Gosplan system.
And of course I will grant firms use hierarchical coordination mechanisms internally (managers allocate resources by command rather than prices).
I suppose my angle here is to be clear that firms are typically a kind of hybrid entity: they mix various coordination mechanisms (prices and hierarchy). This makes them quite different from centrally planned economies.
There almost never are any markets within any single company. Which makes internals of any company a planned "economy".