Prediction of Producer Price Index Based on ARIMA Model
Producer Price Index(PPI)is an indicator to measure the changes of raw materials,labor and other production costs paid by producers.It is of great significance to economic stability and enterprise management,and can help the government,central bank and enterprises make corresponding decisions and adjustments.This paper selects the monthly data of PPI from January in 2013 to July in 2023,establishes the AMIMA(1,0,2)model,and uses this model to predict the PPI from January to July in 2013.Then,the prediction results are compared with the actual values.The results show that the model has a good prediction effect and provides a reliable prediction for the PPI index in the next six months,which provides an important reference for formulating economic policies.