F.A. Hayek, The Road to Serfdom

Parliament can, of course, control the execution of tasks where it can give definite directions, where it has first agreed on the aim and merely delegates the working-out of the detail. The situation is entirely different when the reason for the delegation is that there is no real agreement on the ends, when the body charged with the planning has to choose between ends of whose conflict parliament is not even aware, and when the most that can be done is to present to it a plan which has to be accepted or rejected as a whole. There may and probably will be criticism; but as no majority can agree on an alternative plan, and the apts objected to can almost always be represented as essential parts of the whole, it will remain quite ineffective. Parliamentary discussion may be retained as a useful safety valve and even more as a convenient medium throught which the official answers to complaints are disseminated. It may even prevent some flagrant abuses and successfully insist on particular shortcomings being remedied. But it cannot direct. It will at best be reduced to choosing the persons who are to have practically absolute power. The whole system will tend toward that plebiscitarian dictatorship in which the head of the government is fromtime to time confirmed in his position by popular vote, but where he has all the powers at his command to make certain that the vote will go in the direction he desires.

It is the price of democracy that the possibilities of conscious control are restricted to the fields where true agreement exists and that in some fields things must be left to chance. But in a society which for its functioning depends on central planning this control cannot be made dependent on a majority's being able to agree; it will often be necessary that the will of a small minority be imposed upon the people, because this minority will be the largest group able to agree among themselves on the question at issue. Democratic government has worked successfully where, and so long as, the functions of government were, by a widely accepted creed, restricted to fields where agreement among a majority could be achieved by free discussion; and it is the great merit of the liberal creed that it reduced the range of subjects on which agreement was necessary to one on which it was likely to exist in a society of free men. It is now often said that democracy will not tolerate "capitalism." If "capitalism" means here a competitive system based on fee disposal over private property, it is far more important to realize that only with this system is democracy possible. When it becomes dominated by a collectivist creed, democracy will inevitably destroy itself.

[Chapter Five: Planning and Democracy]