国民生产总值年增长对货运周转量增长间关系分析

随着国民经济的发展，货运周转量与国民生产总值呈上升趋势。通常情况下，宏观经济时间序列都存在着一定的自相关性，用一般的线性统计回归无法对两者关系进行准确的研究。介绍了协整以及格兰杰因果检验，对中国货运周转量增量和GDP增量2个时间序列为对象进行实证，证明了它们之间存在着稳定的联动关系。

Co-integration Analysis of the Impact of the GDP Net growth on the traffic turnover volume net growth

With the development are uptrending. On commonly conditions, series data, if we use the common linear of National Economy in China, GDP and the traffic turnover volume some self-relation have been in exsixtence in the macro-economic time regression analysis them, there must be some serious error. In this pa per, we first introduce the cointegration test model and Granger test. Then Using ADF technique, cointegration test model, we use these technique study the impact of the net growth of GDP over the 50 years traffic turnover volume annual net growth. We proved that, in the long time, there having an granger co-integration relationship between them.