"planning a medicine which taken in small doses can produce the effects for which one might hope from its thoroughgoing application both competition and Central direction become poor and inefficient tools if they are incomplete they are alternative principles used to solve the same problem and the mixture of the 2 means that neither will really work and that the result will be worse than if either system had been consistently relied upon or to express it differently planning and competition can be combined only by planning for competition but not by planning against competition"

The Road to Serfdom

-Hayek