If price ceilings were low enough, would they cause shortages in non-competitive markets too? (Answer: Yes.) So, if price ceilings caused shortages in the Second World War, that can’t be taken as...

If price ceilings were low enough, would they cause shortages in non-competitive markets too? (Answer: Yes.) So, if price ceilings caused shortages in the Second World War, that can’t be taken as empirical support for the demand and supply model, can it?