Fundamentally centralized control has an information problem. Decisions about how to allocate resources require complex information that mostly exists at the e

Fundamentally centralized control has an information problem. Decisions about how to allocate resources require complex information that mostly exists at the edge, but communicating all of that back to the central controller would just overwhelm them. This is why markets work so well, the decisions about how to allocate the resources are pushed down to where the information is. But this is also why market are bad at solving systematic issues, in that case the information is above where the decisions are being made. You can see where there are tradeoffs and cases where one system works better than the other, so anybody who issues a blanket statement like "markets are always the best solution" is not operating with a complete picture of the world.