碳排放约束下农业全要素能源效率增长及收敛分析——基于Malmquist-Luenberger指数分解

Agricultural Total Factor Energy Efficiency Growth and Convergence under Carbon Emission Constraints:Based on Malmquist-Luenberger Index

采用2000--2014年30个省份的面板数据，运用基于SBM的方向性距离函数的Malmquist—Luenberger指数，对碳排放约束下我国及东部、中部、西部各区域的农业全要素能源效率进行测算和分解，并对其收敛性进行检验。研究发现：（1）2000--2014年全国及三大区域的碳排放约束下农业全要素能源效率年均增长率分别为1．15％、1．91％、0．43％和0．98％，相比无碳排放约束下的效率均出现了不同程度的下降，表明农业非期望产出的过度排放对农业能源利用造成了一定的效率损失；（2）考察期内，碳排放约束下中国各地区农业全要素能源效率均取得了不同程度的增长，但该增长主要由农业技术进步推动，农业技术效率却出现了不同程度的恶化；（3）碳排放约束下，全国以及东部、中部、西部地区的农业全要素能源效率既存在绝对卢收敛，也存在条件卢收敛，说明不同地区在朝着各自稳定水平发展的过程中出现了落后地区的追赶效应。

This paper used SBM directional distance function and Malmquist-Luenberger efficiency index to estimate and resolve our country and the eastern, central, eastern regions＇ agricultural total factor energy efficiency under carbon constraints from 2000 to 2013 and test its convergence. The result showed that： （1） From 2000 to 2014, the rate of agricultural total factor energy efficiency level of our country and each region are 1.15%, 1.91%, 0.45% and 0.98%. Compared with no carbon emission constraints, there are different degrees of decline. It means that agricultural undesirable output excessive emission cause a loss of efficiency. （2） During the investigation period, the agricultural total factor efficiency level of country and each region under constraint of carbon has risen in varying degrees, because of technical progress, but technical efficiency has been deteriorated. （3） The result of agricultural total factor efficiency level of our country and each regional under constraint of carbon appear show apparent fl absolute and conditional fl convergence, and the region with low energy efficiency appears to catch up with the high efficiency region.