下载后可任意编辑基于 ARIMA 模型的海南省国内生产总值预测基于 ARIMA 模型的海南省国内生产总值预测 王爽 汪海飞 [摘 要]选取 1978—20XX 年海南省 GDP 数据为讨论样本,依据 Box-Jenkins方法建立 ARIMA 模型,通过 1978—20XX 年样本内数据建立 ARIMA(1,1,2)模型,来预测 20XX—20XX 年样本外的海南省 GDP 数值
通过对模型诊断与检验,发现 ARIMA(1,1,2)模型能较好地达到预测效果,预测平均误差控制在 5%之内,能较好地对海南省 GDP 做出短期预测,为海南省政府制定经济进展目标提供参考
[关键词] ARIMA 模型;GDP 预测;ADF 检验;时间序列 Abstract: This paper selects the GDP data of Hainan Province from 1978 to 20XX as the research sample, establishes ARIMA model based on box-Jenkins method , and forecasts the GDP value of Hainan province outside the sample from 20XX to 20XX by establishing ARIMA (1,1,2) model
Through the diagnosis and test of the model, it is found that ARIMA ( 1 , 1 , 2 ) model can better achieve the prediction effect , the average error of prediction is controlled within 5%, and it can mak