我国香蕉生产技术进步贡献率的实证分析

Empirical analysis of contribution rate of scientific and technological progress for banana production in China

以国家香蕉产业技术体系抽样调查的1995—2013年我国香蕉的产量、收获面积、物质投入、人工投入等相关数据为依据,运用C-D生产函数模型计算出1995—2013年我国香蕉生产的科技进步贡献率为23.5%(索洛余值法),其中收获面积的弹性系数为1.023、物质投入的弹性系数为-0.582、人工投入的弹性系数为0.517。这与我国农业科技进步贡献率52%相比,还存在不小的差距,其主要原因是我国香蕉科技投入的有效不足和技术扩散的实际成效有限。加强科研攻关,提高科技对香蕉生产的支撑作用,推动香蕉科研与实际生产紧密结合,加速香蕉生产技术的有效供给和有效扩散,加快香蕉产业的组织化发展进程,建立准公共类生产技术的供给机制,是未来较长一段时期内提升我国香蕉科技进步贡献率的根本所在。

Based on the date collected by the national banana industry information technology system about Chinese banana production, harvested area, material input, labor input and so on from 1995 to 2013, the contribution rate of scientific and technological progress of banana production in China based on the Cobb-Douglas production function model, was 23.5% （Solow residual method）. The elastic coefficient of harvested area was 1.023, the elastic coefficient of material inputs was -0.582, and the elastic coefficient of labor input was 0.517. However, the contribution of agricultural science and technology was 52%, there was still a large gap. The main reasons inclued the lack of effective technological investment and effective technology diffusion for banana. So strengthening the scientific research, enhancing the role of science and technology to promote banana production, promoting the close integration of scientific research and the actual production for banana, facilitating the effective supply and the effective diffusion of banana production technology, accelerating the development process of organization for banana industry, establishing the supply mechanism of quasi-public class production technology, could enhance the contribution rate of scientific and technological progress of banana production in China for a longer period of time.