为了研究价格传导规律,准确预见2010年价格变化趋势,运用差分回归分析建立传导模型、GM(1,1)模型的方法,以1994-2009年各月原材料、燃料、动力购进价格指数(PPR)、工业品出厂价格指数(PPI)、商品零售价格指数(RPI)、居民消费价格指数(CPI)为基础,预测2010年这四种指数变化情况,研究结果表明:当前通货膨胀已经非常明显,需要适时引导通胀预期,防止出现严重的通货膨胀。该研究成果为宏观经济决策提供依据。
To study the price transmission rules and accuratly predict the price trend in 2010,the paper proposes a differential transmission model and a GM (1,1) model based on regression analysis. The models are used to predict the variations of the PPR,PPI,RPI and CPI indices in 2010 on the basis of four indices in 1994-2009. The results show that currently there is a clear indication of inflation and the inflation expectations should be timely guided to prevent a serious inflation. The study results provide a basis for macroeconomic policy-making.