简介:Carbonemissionisthecurrenthotissueofglobalconcern.Howtoassessvariouscontributingfactorsforcarbonemissionisofgreatimportancetofindoutthekeyfactorsandpromotecarbonemissionreduction.Inthispaper,theauthorconstructsanidenticalequationforcarbonemission,basedontheeconomicaggregate,theeconomicstructure,theefficiencyofenergyutilization,thestructureofenergyconsumption,andthecoefficientofcarbonemission;byapplyingtoLMDIdecompositiontechnology,theauthoranalyzesthecarbonemissionofChinafrom1995to2007atindustriallevelandregionallevel.TheresultsshowthattheexpansionofeconomicaggregateisthemainreasonforChina'srapidlyincreasingcarbonemissionandtheincreaseofenergyutilizationefficiencyisthekeyfactorthatcanholdbacktheincreaseofcarbonemission.Inaddition,thechangeofindustrialstructureorregionalstructureandthechangeoftraditionalenergystructurehavelimitedinfluenceonthecarbonemission,andtheirpotentialshavenotyetbeenexploited.Attheendofthispaper,theauthorproposestheeffortsthatChinashouldmaketoreducecarbonemission.
简介:本文首先结合案例分析了传统连环替代法在成本控制与财务分析方面的局限性,然后借鉴作业成本法(ABC)与对数平均迪氏指数(LMDI)分析法改进了多因素变动量在各指标之间的合理配比方式,并对两类改进方法的计算结果进行验证,两类改进方法均能有效地分配多因素交叉混合影响。
简介:ThispaperaimstoidentifythemaindrivingforceforchangesoftotalprimaryenergyconsumptioninBeijingduringtheperiodof1981-2005.Sectoralenergyusewasinvestigatedwhenregionaleconomicstructurechangedsignificantly.ThechangesoftotalprimaryenergyconsumptioninBeijingaredecomposedintoproductioneffects,structuraleffectsandintensityeffectsusingtheadditiveversionofthelogarithmicmeanDivisiaindex(LMDI)method.Aggregatedecompositionanalysisshowedthatthemajorcontributoroftotaleffectwasmadebytheproductioneffectfol-lowedbytheintensityeffect,andthestructuraleffectwasrela-tivelyinsignificant.Thetotalandproductioneffectswereallposi-tive.Incontrast,thestructuraleffectandintensityeffectwereallnegative.Sectoraldecompositioninvestigationindicatedthatthemosteffectivewaytoslowdownthegrowthrateoftotalprimaryenergyconsumption(TPEC)wastoreducetheproductionoftheenergy-intensiveindustrialsectorsandimprovingindustrialen-ergyintensity.Theresultsshowthatinthisperiod,Beijing'seconomyhasundergoneatransformationfromanindustrialtoaserviceeconomy.However,thestructuresofsectoralenergyusehavenotbeenchangedyet,andenergydemandshouldbein-creasinguntiltheenergy-intensiveindustrialproductiontobereducedandenergyintensityoftheregionreachesapeak.Assequenceenergyconsumptiondataofsub-sectorsarenotavailable,onlythefundamentalthreesectorsareconsidered:agriculture,industryandservice.However,furtherdecompositionintosecon-daryandtertiarysectorsisdefinitelyneededfordetailedinvesti-gations.
简介:利用LMDI方法,分解分析1998—2012年我国工业废水排放变化的驱动因素,结果表明:技术进步对工业废水排放起到抑制作用,同时,也是排放强度下降的决定性因素;工业经济增长是工业废水排放增加的主要推动力;排放系数效应和产业结构效应对工业废水排放的影响存在地区差异性;人口规模的扩大促进了工业废水排放的增加,人口流动促进工业废水排放增加。另外,还分析了东中西部地区工业废水排放变化的驱动因素。因此,各省份需要加强技术创新,提高工业节水技术,尤其是中西部地区;调整优化工业结构,大力发展低耗水或低排放的行业,促进工业用水的循环利用;加快城市间和城乡人口流动;东部发达地区加大对中西部欠发达地区资金、技术等支持。
简介:本文将LMDI分解法引入高校毕业生人数与GDP增长之间动态驱动关系的研究,通过构建GDP总量分解模型,深入分析二者之间内在的因果驱动关系。分析结果表明,西北五省高校毕业生人数活动效应对GDP变动总效应的贡献最大,是主要驱动力;结构效应则对GDP变动产生较小的负影响;效率效应在研究样本期间与GDP增长整体正相关,对GDP增长起重要促进作用。