摘要
借鉴多阶段DEA模型原理,构建三阶段空间计量SBM模型,以管理和环境双重视角对我国2001-2012年276个城市全要素能源效率进行了评价和解析,并对其外生环境进行了识别,提出了改善能源效率的路径和策略。研究结果表明,以省域作为评价单元,多阶段DEA模型忽略了评价单元的空间溢出效应,会高估全要素能源效率;我国全要素能源效率依然偏低,节能潜力可达34%-46%,呈现倒"U"型发展趋势和区域不平衡特征,管理无效率和环境无效率是能源低效的原因,而不断恶化的外生环境是主要原因;空间集聚性、产业结构、技术进步、基础设施和能源禀赋是影响全要素能源效率的关键因素,也是环境劣势地区提高能源效率的重点方向;东部地区城市应着重改善外生环境,提升能源效率,中西部地区和东北地区应以提高能源管理能力为重点策略。
This essay,from two point of view of manage- ment and environment, evaluates, deconstructs and exogenously environmentally identifies Total - Factor Energy Efficiency of China＇s 276 cities from 2001 - 2012 by constructing the Three - phase Spatial Econometric SBM Model which is based on the principle of multi - stage DEA model. Then it presents the routes and strategies for improving energy efficiency. The results show： Firstly,taking province as an evaluating unit, multi - stage DEA model ignores evaluating units＇ sp^llover effects which would o- verrate TFEE. Secondly, China＇s TFEE is still on the low side and has energy - saving potential up to 34% - 46% which pres- ents development tendency of inverted - U and regional unbal- ance. Management and environment inefficiency are the common causes for energy inefficiency but the primary cause is the gradu- ally deteriorating exogenous environment. Thirdly, spatial concen- tration, industrial construction, technology improvement, infra- structure and energy endowment are the crucial factors that affect TFEE,as well as the important orientations on increase energy efficiency for the regions with poor environment conditions. Finally, east regional cities should strongly improve exogenous environment to promote energy efficiency while middle and west regions and northeast regions should focus on enhancing capacities of energy resource management.
出处
《城市问题》
CSSCI
北大核心
2015年第8期53-60,共8页
Urban Problems
基金
国家自然科学基金项目(71473010)
