Empirical Research on Green Innovation Capability Evaluation of China's Manufacturing Enterprises Based on Principal Component and Cluster Analysis

In this paper, twelve indicators related to green innovation capability of China's manufacturing enterprises are selected and green innovation capability of twenty-five industries in China's manufacturing industry in 2014 is evaluated and sorted by principal component analysis method. Then the green innovation ability of the industry and enterprise is divided into three categories according to the similarity by using cluster analysis. Finally, the results of principal component analysis and cluster analysis are compared and analyzed. The research shows: The transportation equipment manufacturing industry and electrical machinery and equipment manufacturing industry belong to the high green innovation ccapability of the industry as the first category; chemical fiber manufacturing, general equipment manufacturing industry, ferrous metal smelting and rolling processing industry, equipment manufacturing, non-ferrous metal smelting and rolling processing industry and the agricultural food processing industry belong to middle green innovation capability of the industry as the second categories; the rest of the industry belong to the low green innovation capability of the industry as the third categories.