现实的市场机制不是象一架预定好程序的机械装置那样按步就班地运动,而是在充满大量不确定因素、不完全竞争和非均衡的条件下发挥作用的。每个市场参与者的决策,在本质上是对供求变化和竞争对手决策的预期。预期作为微观主体行为的事先约束,构成市场运动过程的关键性内生变量,影响甚至决定着宏观经济政策的效应如何。传统的社会主义政治经济学不但不研究预期这一重要的微观决策变量,有时还把对预期因素的研究斥之为“主观心理因素决定论”,这在某种意义上堵死了深入认识经济运行机制的又一条门径。我国经济体制 The actual market mechanism does not move step by step like a mechanical device with a predetermined program, but functions under a lot of uncertainties, imperfect competition and imbalance. The decision of each market participant is essentially the expectation of changes in supply and demand and decisions made by competitors. The anticipatory restraints that are expected to act as micro-agents constitute the key endogenous variables in the process of market movement, and their influence even determines the effect of macroeconomic policies. The traditional socialist political economy not only does not study the expected micro-policy variables of this important, sometimes the study of the expected factor as the “subjective psychological determinants”, which in a sense blocked the depth of understanding of the economy Another mechanism for operating mechanism. China's economic system