The innovations of this paper were that the dynamic method and the gray correlation analysis were used instead of static method and OLS to count the IIT level and to analyze the factors.

• 与以往在衡量产业内贸易水平和分析产业内贸易影响因素作用时分别使用静态指数和最小二乘法不同,本文分别在这两方面尝试使用动态指数和灰色关联分析方法,实现了对原有方法部分弊端的弥补,也实现了方法应用方面的创新。