不同阶段制度、技术对兵团棉花生产影响的实证分析

Empirical Analysis of Institution and Technology Influence on Cotton Production in Different Stages

该文将1950—2013年兵团棉花生产划分为四个阶段,重点分析各阶段制度、技术对其棉花播种面积及单产的影响。研究结果表明:农业基础设施建设投资对兵团棉花生产发挥了重要作用,劳均作物面积的扩大促进了棉花单产的提高,而劳动力数量的增加则阻碍了单产的提高;各阶段制度对播种面积及单产的影响与该阶段政府实施的政策导向及该政策的合理程度有关;技术构成了各阶段单产提高最重要的因素,且发挥了边际效益递增作用。

This article divides the evolution of cotton production from 1950 to 2013 in XPCC into four stages and makes a selective analysis of the effects of the institution and technology influence on the sowing area and the per unit area yield of different stages. The conclusion is that the agricultural infrastructure construction investment exerts a stable positive influence on the cotton production.The increase of the labor force and the per capita crop planting area exert a negative influence on the improvement of per unit area yield. The technology constitutes the most important factor of the increase of per unit area yield and this effect presents an increasing marginal benefit function. The influence of institution on the sowing area and per unit area yield is related to its reasonability and policy orientation.