绿色低碳约束下重庆能源DEA效率实证分析

客观评价重庆能源投入产出效益,探究环境污染、能源消费和经济增长之间的关系,进行能源结构优化,是当前重庆能源消耗走向绿色低碳方向发展面临的重大问题,也是重庆制定节能减排政策、能源发展战略和经济规划的重要基础。本文将能源投入和经济社会等产出因子科学分组,运用数据包络分析技术(DEA),通过构建的能源需求结构方程以及DEA模型,对重庆能源消费进行了一系列DEA实证研究,得到了重庆能源投入产出规模效率在不同历史时期、不同阶段的变化规律,获取了能源冗余投入(径向改进和松驰改进)值、规模效应值、综合技术效率值和纯技术效率值,确定了DEA弱有效、DEA强有效、DEA完全有效的生产前沿面,并在此基础上对2016—2020年重庆能源结构进行了优化。研究成果可以为确定重庆能源绿色低碳发展方向、优化"十三五"重庆能源消费结构提供科学依据。

DEA efficiency analysis of energy in Chongqing under the constraint of green and low carbon economy

Objectively evaluating the efficiency of input and output of the energy in Chongqing, exploiting the relationship between environment pollution, energy consumption and economic growth, and optimizing the energy structure, are the important issues for guiding energy consumption of Chongqing to the direction of green and low carbon and the important basis of policy-making for energy saving and pollution reduction, and strategy-making of energy development and economic planning. In this work, we scientifically grouped the energy input and economic and social output factors, and then used data envelopment analysis (DEA) to construct an energy demand structure equation and a DEA model. And a series of DEA empirical studies on energy consumption in Chongqing were conducted. The variation of scale efficiency of Chongqing energy input and output in different historical periods and different stages, the energy redundant input value (radial improvement and relaxation improvement), the scale effect value, the comprehensive technical efficiency value and the pure technical efficiency value were obtained, and then the effective production frontiers of DEA weak efficiency, DEA efficiency and DEA complete efficiency were determined. Based on these results, the energy structure from 2016 to 2020 in Chongqing was optimized. The research results can provide a scientific basis for the green and low carbon development of Chongqing and optimizing the its energy consumption structure in the 13th Five-Year Plan.