Article
Environmental efficiency analysis of transportation system in China: A non-radial DEA approach
Manycountriesareworriedaboutreducingenergyconsumptionandenvironmentalpollutionwhile increasing theproductivityandefficiency oftheirindustries.Thisstudyintendstocontributetothe literaturebyproposinganon-radialDEAmodelwiththeslacks-basedmeasure(SBM)toanalyzethe environmentalefficiency ofChina's transportationsector.Theresultsshowthatmostoftheprovincesin China donothaveaneco-efficient transportationindustry.Theenvironmentalefficiency levelsinmostof the provincesarelowerthan50%oftheidealortargetlevel.Therefore,China's transportationindustryis environmentallyveryinefficient. Chinacanreduceagreatdealofcarbonemissionsineachprovince ranging fromatleast1.6millionTOEsinQinghaiandatmost33millionTOEsinGuangdongand Shanghai.
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