Gray relational analysis on factors involving carbon dioxide emissions in Beijing

In the paper, we studied the effect of different factors involving Beijing economic indices on carbon dioxide emission using gray relation analysis, which included GDP, the value-added of the secondary industry, fixed asset investment, household consumption, net exports, energy consumption, household population and the value-added of the tertiary industry. Our results showed that energy consumption, population size and the value-added of the secondary industry were the most important factors affecting carbon dioxide emission, while net exports and the value-added of the tertiary industry had a little effect on the carbon dioxide emission in Beijing. On the base of the results, we gave suggestions about how to reduce the carbon dioxide emission in Beijing.