中国人口资源与环境
中國人口資源與環境
중국인구자원여배경
China Polulation.Resources and Environment
2014年
5期
72~79
,共null页
空间外部性 集聚经济 工业能源效率 分位数回归
空間外部性 集聚經濟 工業能源效率 分位數迴歸
공간외부성 집취경제 공업능원효솔 분위수회귀
Spatial Externalities; Economic Agglomeration; Energy Efficiency; Panel Data FGLS; Quantile Regression
本文以马歇尔集聚理论为基础构建空间外部性指标和计量模型，运用2003—2011年城市面板数据检验了经济活动空间集聚对能源效率的影响。结果显示。城市能源效率受到空间中城市专业化劳动力、中间投入和技术溢出效应的影响，其中．中间投入空间可得性和空间技术外溢对能源效率具有显著促进作用，而邻区专业化劳动力却不利于当地能源效率的提高。从分地区的估计结果来看。空间集聚外部性对各地区能源效率的综合效应均为正。但各地区不同集聚外部性对能源效率的作用渠道和影响效果各异。进一步通过考察空间集聚外部性对能源效率不同分位点的边际效应及其变化趋势发现。专业化劳动力可得性、中间投入可得性和区际沟通的技术溢出对能源效率的边际贡献随分位数增加呈现先增后降的倒U型变化趋势，而区际研发的技术溢出则呈现U型变化趋势。
本文以馬歇爾集聚理論為基礎構建空間外部性指標和計量模型，運用2003—2011年城市麵闆數據檢驗瞭經濟活動空間集聚對能源效率的影響。結果顯示。城市能源效率受到空間中城市專業化勞動力、中間投入和技術溢齣效應的影響，其中．中間投入空間可得性和空間技術外溢對能源效率具有顯著促進作用，而鄰區專業化勞動力卻不利于噹地能源效率的提高。從分地區的估計結果來看。空間集聚外部性對各地區能源效率的綜閤效應均為正。但各地區不同集聚外部性對能源效率的作用渠道和影響效果各異。進一步通過攷察空間集聚外部性對能源效率不同分位點的邊際效應及其變化趨勢髮現。專業化勞動力可得性、中間投入可得性和區際溝通的技術溢齣對能源效率的邊際貢獻隨分位數增加呈現先增後降的倒U型變化趨勢，而區際研髮的技術溢齣則呈現U型變化趨勢。
본문이마헐이집취이론위기출구건공간외부성지표화계량모형，운용2003—2011년성시면판수거검험료경제활동공간집취대능원효솔적영향。결과현시。성시능원효솔수도공간중성시전업화노동력、중간투입화기술일출효응적영향，기중．중간투입공간가득성화공간기술외일대능원효솔구유현저촉진작용，이린구전업화노동력각불리우당지능원효솔적제고。종분지구적고계결과래간。공간집취외부성대각지구능원효솔적종합효응균위정。단각지구불동집취외부성대능원효솔적작용거도화영향효과각이。진일보통과고찰공간집취외부성대능원효솔불동분위점적변제효응급기변화추세발현。전업화노동력가득성、중간투입가득성화구제구통적기술일출대능원효솔적변제공헌수분위수증가정현선증후강적도U형변화추세，이구제연발적기술일출칙정현U형변화추세。
Based on the theory of Marshallian agglomeration externalities, this paper analyzes the effects of spatial externalities on urban industrial energy efficiency. The results find that, urban energy efficiency is not only related to the agglomeration factors of index city, but also affected by specialized labor force, intermediate inputs and technological spillovers of neighboring cities. Where spatial availability of intermediate inputs and spatial technological spillovers significantly improve the urban energy efficiency, while the specialized labor force of neighboring cities plays an negative role on energy efficiency. From the estimates by region, we can see that the combined effects of spatial agglomeration externalities on energy efficiency of each region are positive, but different types of agglomeration externalities of each region play different roles on regional energy efficiency in terms of action channels and impact effects. After examining the marginal effects of spatial agglomeration externalities on energy efficiency of different quartiles and their trends, we further find that the marginal contributions of availability of specialized labor force, intermediate inputs and technology spillovers of inter-regional interpersonal communication have an inverted U-shaped trend with quantile increases, while that of technology spillovers of inter-regional R＆D has an U-shaped trend.
