I've seen it convincingly argued that large corporations like Walmart operate like a planned economy internally, even if they are acting in an externally unplanned economy.
JT from Second Thought talks about it here: https://www.youtube.com/watch?v=xuBrGaVhjcI as well as early socialist attempts at doing the same thing with computers (Cybersyn in Chile).
JT from Second Thought talks about it here: https://www.youtube.com/watch?v=xuBrGaVhjcI as well as early socialist attempts at doing the same thing with computers (Cybersyn in Chile).