本文基于门限自回归模型方法对我国1990年1季度至2007年3季度经济增长率进行研究.识别和检验我国经济周期呈现的基本特征,并对我国经济增长走势进行分析.研究发现:三区制门限自回归模型适合于描述我国经济周期波动,进而刻画了我国经济增长呈现出的低速增长-适速增长-高速增长-适速增长-低速增长周期规律;经济周期三阶段性可由拐点8.2和9.71进行划分;通过非线性预测,点预测结果表明经济增长率将在未来两年内可能出现持续下降态势,但仍会高于10%的高位上运行,而区间预测结果则显示未来12个季度内我国经济增长率将主要在7%-13%的区间运行。
This paper uses the threshold autoregressive model to describe the China's business cycle from the first quarter of 1990 to fourth quarter of 2006. We find that China's business cycle changes from low growth to suitable growth and fast growth, and at last return to low growth. The threshold values of these three kinds of growth are 8.20% and 9.71%. With the nonlinear forecasting technique, the point forecast suggests that the growth rate will fall persistently in the future 8 quarters, and the interval forecast shows that it will run in area from 7% to 13%.