本文对政治经济周期理论进行了全面分析 ,在基本假设和模型结构上进行了拓展 ,特别是定量地分析了政治经济周期模型中的政策有效性和动态非相容性问题 ,并给出了政策动态相容性的基本条件 ,论述了政治经济周期理论对制定当前经济政策具有的启示 This article has carried on the overall analysis to the political economy cycle theory, has carried on the expansion in the basic hypotheses and the model structure, specially has carried on the quantitative analysis to the policy validity and the dynamic incompatibility problem in the political economy cycle model, and has given the policy The basic conditions of dynamic compatibility, discusses the political economy cycle theory to formulate the current economic policy has enlightenment