我国医疗器械产业集中度影响因素的实证研究

An Empirical Study on the Factors Influencing the Concentration of China’s Medical Device Industry

文章首先对我国医疗器械产业集中度进行测算,发现产业集中度呈持续上升态势.之后,采用线性回归分析和灰色关联分析对我国医疗器械产业集中度的影响因素进行分析.回归分析显示规模经济、生产企业进入率和股权投资有助于提高产业集中度,而产品差异率则阻碍了产业集中度的提高.灰色关联分析显示上述4种因素均对产业集中度具有重要影响,我国医疗器械产业集中度的变化是4种因素共同作用的结果.

The article firstly measured the concentration of medical equipment industry in China and found that the concentration of industry continued to rise.After that,linear regression analysis and grey correlation analysis are used to analyze the factors affecting the concentration of medical device industry in China.Regression analysis shows that economies of scale,entry rate of production enterprises and equity investment contribute to the increase of industrial concentration, while the product differentiation rate hinders the improvement of industrial concentration.Grey correlation analysis shows that the above four factors have an important impact on industrial concentration,and the change in the concentration of China’s medical device industry is the result of the combined action of four factors.