统计实证表明，无论在计划经济时期还是在市场经济时期，我国的经济都是沿着一条明显的周期波动轨迹运行，这就是经济的大起大落。尽管改革开放以后，我国已经基本消除了古典型经济波动的形态，尽管每一轮经济期的推动要素都在不断地发生变化，但大起大落的周期波动所造成的损 Statistical evidence shows that in both the planned economy period and the market economy period, our economy runs along a clear cycle of cyclical fluctuations, which is the ups and downs of the economy. Despite the reform and opening up, our country has basically eliminated the classical forms of economic fluctuations. Although the driving factors of each round of economic period are constantly changing, the ups and downs of the cyclical fluctuations caused by the loss