Yet the planning of an economic system is beyond the power of any one consciousness: the number, variety and locations of the different factors of production, the various technological possibilities that are open to them, and the different possible permutations and combinations of what might be produced from them, are far beyond the power even of the greatest genius to keep in mind. Economic planning, von Mises showed, requires the cooperation of all who participate in the economic system. It can exist only under capitalism, where, every day, businessmen plan on the basis of calculations of profit and loss; workers, on the basis of wages; and consumers, on the basis of the prices of consumers' goods.