市场协调失灵论是新凯恩斯主义学派为解释非市场出清的原因而提出的一种新理论。市场协调失灵论从市场机制不能协调众多经济人行为来说明市场失灵。该理论认为,在一个由许多经济人构成的经济中,经济人之间的行为相互关系相互制约,尽管经济人是理性人,然而每个理性人的市场力量都很小,单个经济人无力协调整体经济行为,从而导致市场失灵,经济出现多重均衡态和乘子效应。因此,经济人的理性预期具有非理性, The market-coordination failure theory is a new theory put forward by the New Keynesian school to explain the reasons for the non-market liquidation. Market coordination failure theory illustrates market failure from the fact that market mechanisms can not coordinate the behavior of many economic agents. The theory holds that in an economy composed of many economic persons, the interrelationships among the economic persons are restricted. Although the economic persons are rational persons, the market power of each rational person is small and the individual economic persons are unable to coordinate The overall economic behavior, leading to market failure, the economy appears multiple equilibrium and multiplier effects. Therefore, the economic people’s rational expectations are irrational,