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为应对国际金融危机的冲击,国务院4万亿元巨额投资计划出台,碳密度的反弹也随之见诸报端。在这样的背景下,文章运用格兰杰因果检验对我国1980～2009年投资率和碳密度的数据进行分析。检验结果表明,投资率和碳密度之间存在单向因果关系,投资率是碳密度的格兰杰原因。最后从我国的投资现状出发,提出展望与建议。
To cope with the impact of the international financial crisis, the State Council issued a massive investment plan of 4 trillion yuan, and the rebound of carbon density also saw various reports. In this context, the article uses Granger causality test to analyze the data of investment rate and carbon density from 1980 to 2009 in our country. The test results show that there is a one-way causal relationship between the investment rate and the carbon density, and the investment rate is the Granger reason for the carbon density. Finally, starting from the current investment situation in our country, put forward the prospect and suggestion.