In the ideal market of general equilibrium theory, choices are made in
full knowledge of one another, and all expectations are fulfilled. Th
is pre-harmonization of individual plans does not occur in real-world
markets where decisions must be taken in ignorance of one another. The
Austrian school grants this, but claims that real-world price systems
are nonetheless effective in coordinating raving and investment decis
ions, which are motivated by disparate considerations. In contrast, Ke
ynes held that without the pre-reconciliation of individual plans, inv
estment and employment would be less than optimal, and the resulting d
istribution of income arbitrary and inequitable.