The Application of PCA in the Evaluation of the Ecological Environmental Impact of a Single Product Export Trade
This paper discussed the ecological environmental impact of a single product export trade with the mechanical and electronic products export in Hebei province for example.It is evaluated by nine ecological indexes, of which the index weights are determined by PCA.A comprehensive environmental index is obtained through the calculation.The results show that the mechanical and electronic products export trade in Hebei got a diminishing impact on the ecological environment year by year.Using PCA can obviously find the main ecological environment factors in a single product export trade, and can also make a lateral comparison between different ecological environmental impacts of different export products.
export ecological environment PCA
Jianna Zhao Menglu Zang
Department of Economics and Management North China Electric Power University Baoding,China
国际会议
太原
英文
330-333
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）