In short, whether for the obvious reason that in the absence of futures markets the price system cannot perform its essential coordinating role with … - Joseph E. Stiglitz

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In short, whether for the obvious reason that in the absence of futures markets the price system cannot perform its essential coordinating role with respect to future-oriented activities, such as investments, or for the more subtle reasons just discussed, that in the absence of futures markets, extending infinitely far into the future, the market economy is likely to exhibit dynamic instabilities there is no reason to believe that even with rational expectations it will converge to the steady state; there is no presumption that markets, left to themselves, will be efficient. For advocates of market socialism, the implication of this analysis seems clear: There is a need for the kind of government control of the allocation of investment envisaged in market socialism.