基于生产函数的长江航道对长江经济带的科技贡献度测算

Estimation of Scientific and Technological Contribution of Yangtze River Channel to Yangtze River Economic Zone Based on Production Function

为明确长江航道对长江经济带的科技贡献作用,运用扩展的柯布-道格拉斯生产函数模型定量计算长江航道对长江经济带的科技贡献度。结果表明,2005-2017年长江航道科技对长江经济带的平均贡献度为38.31%,整体水平较高,科技进步对长江经济带的发展拉动作用明显。

In order to clarify the scientific and technological contribution of the Yangtze River Channel to the Yangtze River Economic Zone,the extended Cobb-Douglas production function model is used to quantitatively calculate the scientific and technological contribution of the Yangtze River Channel to the Yangtze River Economic Zone.The results show that the average contribution of Yangtze River waterway science and technology to the Yangtze River Economic Zone is 38.31% from 2005 to 2017,and the overall level is relatively high.The scientific and technological progress plays an obvious role in promoting the development of the Yangtze River Economic Zone.