Gardiner’s conclusions are worth quoting:
“... the actual behavior of administration-dominated prices … tends to differ so sharply from the behaviour to be expected from classical theory as to challenge the basic conclusions of that theory. However well the theory may apply to market-dominated prices, it would not seem to apply to the bulk of the administration-dominated prices in the sample or to that part of the industrial world which they typify. Until economic theory can explain and take into account the implications of this nonclassical behavior of administered prices, it provides a poor basis for public policy. The challenge which administered prices make to classical economics is as fundamental as that made by the quantum to classical physics.” (Means 1972: 304).
Administered price behaviour in real world economies really does lead to revolutionary conclusions for economic theory: so much of neoclassical economics and Austrian economic theory simply collapses and must be abandoned once one understands its implications.Social Democracy For The 21St Century: A Post Keynesian Perspective
Disequilibrium prices are deliberately created and maintained by fixprice enterprises in a vast swathe of the economy, simply because they prefer it that way. Such businesses are not generally in the habit of using flexible prices as their normal method of clearing supply, or equating demand with supply.
Gardiner Means on Administered Prices
Lord Keynes