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珠江三角洲是最先利用外来资本也是目前吸引外来资本最多的地区之一,对其投资环境状况的研究有着极为重要的意义。主成分分析法利用降维的思想从复杂的指标体系中提取出几个主要成分并且计算各成分得分,从得分情况判断投资环境的状况。聚类分析在主成分分析的基础上将样本城市分类,为决策者有针对性地改善投资环境提供依据。结果表明,在珠海等7个市中,珠海、惠州的投资环境最好,深圳和广州的投资环境亟待改善。
The Pearl River Delta is one of the first to utilize foreign capital and is currently attracting the most foreign capital. It is of great significance to the study of the state of investment environment. Principal component analysis uses the idea of dimensionality reduction to extract several main components from the complex index system and calculate the scores of each component, and judge the status of investment environment from the score. Cluster analysis based on principal component analysis of the sample cities will provide the basis for policy-makers to improve the investment environment. The results show that in Zhuhai and other seven cities, Zhuhai, Huizhou, the best investment environment, investment environment in Shenzhen and Guangzhou need to be improved.