我国生物制药上市公司投资风险评价——基于主成分-聚类分析法

Evaluation on Risk of Investing in Listed Companies in Biopharmaceutical Industry:Based on Method of Principal Component and Clustering Analysis

以我国15家生物制药行业上市公司为研究样本,利用聚类分析法,对15家生物制药行业上市公司进行聚类识别,将样本公司分为3类;对投资风险评价指标进行主成分分析,据此计算了15家样本公司的投资风险,并根据比较结果进行了排序。结果表明,我国多数生物制药上市公司的投资风险均衡。

This paper takes 15 listed companies in biopharmaceutical industry as the research example,and divides these companies into three clusters by the method of cluster analysis. And it makes a principal component analysis on the evaluation index of investment risk,and calculates the investment risks of 15 sample companies,and sorts these companies according to the evaluation result. The result shows that most of listed companies in biopharmaceutical industry have balanced investment risk.