中国生猪养殖生产效率的时空特征差异研究

Spatial and Temporal Characteristic Differences in the Production Efficiencies of China’s Hog Farming

本文使用DEA-Malmqusit指数测算比较了中国生猪养殖在时空两个维度的生产效率变化及其分解,应用SFA方法比较分析了要素投入对中国生猪生产的不同影响。研究发现：虽然中国生猪生产效率增长已进入瓶颈期,但不同规模生猪养殖生产效率增长的源泉所呈现的不同特征值得挖掘;中国不同规模生猪养殖生产效率变化呈现显著时间与空间差异;物质、人工、土地等投入要素对不同规模生猪养殖呈现不同影响效应,基于不同时期分组的稳健型检验亦证实了此结论。本文在科技创新、区域布局、土地流转和人才培养等方面展开思考,提出优化组合诸生产要素,实现资源优化配置的生猪养殖模式。

This article utilized DEA-Malmqusit model to calculate and compare the changes of productivity effciencies of hog farming on the dimensions of space-time in China.SFA method is used to analyze and compare different influences of input factors on hog farming in China.Major？ findings？ are summarized as？ follows： Although the productivity growth of hog farming in China has entered a bottleneck period,but the sources of productivity growth of different scale hog farming present different characteristics which are worth further digging.The productivity changes among different scale hog farming present significant spatial differences in China.The different input factors such as material cost,labor costs,land costs have different influences on different scale hog farming in China,which has also been proved by robust test based on grouped data in different periods.Eventually,we have done policy thinkings in terms of science and technology innovation,regional distributions,land circulation and personnel training.We propose to optimize the combination of various productive factors,realize the resource optimal allocation of hog farming mode.