高速公路等交通基础设施与经济增长的关系一直受到广泛的关注。本文根据我国高速公路和经济发展的数据,通过协整检验和Granger因果检验发现,高速公路发展是实际经济增长的Granger原因。通过建立向量自回归模型定量分析了高速公路发展对经济增长的贡献,发现高速公路发展短期内对经济增长的贡献力较弱,但对经济增长的中长期贡献较大。针对实证结论,本文提出了相关对策建议。 The relationship between transport infrastructure such as highways and economic growth has drawn wide attention. Based on the data of highway and economic development in our country, through the cointegration test and Granger causality test, this paper finds that the highway development is the Granger cause of the actual economic growth. Through the establishment of the vector autoregressive model, the contribution of freeway development to economic growth was quantitatively analyzed. It was found that the contribution of freeway development to economic growth in the short term was weaker, but it contributed more to economic growth in the short to long term. In view of the empirical conclusion, this article puts forward some countermeasures and suggestions.