文章认为， 当前我国有效需求不足的原因及特点主要有几个方面： （１） 当前的有效需求不足是多年来经济过于快速数量型扩张、提前透支所产生的必然后果； （２） 相对过剩现象是市场化改革进入攻坚阶段、风险日益强化的经济行为反应；（３） 经济结构型衰退， 有需求结构方面的因素，也有供给结构方面的因素； （４） 当前消费需求停滞不前与收入分配差距扩大化直接相关； （５） 非乐观预期之“合成谬误” 是当前需求不足的重要的心理行为因素 The article holds that there are several reasons for the current lack of effective demand in our country: (1) The current ineffective demand is the inevitable result of overdraft in the past due to the rapid and quantitative expansion of the economy; (2) The phenomenon of relative surplus (3) economic structural decline, there is a demand structure factor, there are also supply structure factors; (4) the current consumer demand stagnation and income distribution (5) “synthetic fallacies” that are not optimistic expectations are the important psychological behavioral factors of the current lack of demand