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利用时间序列谱分析的方法对改革开放以来的中国社会劳动生产率增长率进行了定量分析与周期分离，以四个周期分量较好地拟合了生产率增长率曲线，得到了生产率增长率变化的主要周期，有助于认识生产率增长率的未来变化趋势，并指出生产率增长率周期波动是中国社会经济系统内在的波动的反映。
Using the method of time series analysis, we quantitatively analyze and cyclically separate the growth rate of labor productivity in China since the reform and opening up. We fit the productivity growth curve with four periodic components and obtain the main changes in the productivity growth rate Cycle will help to understand the future trend of productivity growth and point out that the cyclical fluctuations in productivity growth rate are the reflection of the inherent volatility in China’s socio-economic system.