基于Malmquist—DEA方法我国风电行业运行效率分析.docx

基于Malmquist—DEA方法我国风电行业运行效率分析
摘要：
本文采用Malmquist-DEA方法对我国风电行业的运行效率进行分析。通过对行业各地区的实际数据进行分析，我们发现中国风电行业在过去十年的发展中取得了显著的成就，但同时也存在一些局限性。我们运用Malmquist-DEA方法对风电行业的全要素生产率进行测量，得出了2010年至2019年之间的全要素生产率指数和其分解项。研究表明，中国风电行业的技术进步是主要推动因素，但规模效应和组织效率也需要更多的改进。为此，建议加强创新能力，采取更加灵活的组织方式，并优化投资环境，为风电行业的长期发展提供更好的支持。
关键词：风电行业；Malmquist-DEA方法；全要素生产率；效率分析
Introduction:
WindpowerhasbecomeoneofthefastestgrowingindustriesinChinainrecentyears,andithasplayedanincreasinglyimportantroleinpromotingthesustainabledevelopmentofthenationaleconomyandreducinggreenhousegasemissions.However,itisnecessarytoevaluatetheoperationefficiencyofthewindpowerindustryinChinatobetterunderstanditsdevelopmentstatusandprovideresearch-basedguidanceforfuturedecision-making.Malmquist-DEAmethodisoneofthemostcommonlyusedmethodsformeasuringandanalyzingefficiencyinvariousindustries.Inthispaper,weusethismethodtoanalyzetheoperationefficiencyofChina'swindpowerindustryfrom2010to2019.
Methodology:
TheMalmquist-DEAmethodisusedtoevaluatetheinput-outputefficiencyofthewindpowerindustryinChina,andtheresultsoftheevaluationmainlyincludetwoaspects:totalfactorproductivityindex(TFP)anditsdecompositionitems.TFPtakesintoaccounttheinfluenceofvariousfactors,includingtechnicalprogress,scaleeffect,andorganizationalefficiency,onproductionefficiency,whichcanbeusedtomeasuretheoverallperformanceoftheindustry.Thedecompositionitemscanshowthespecificimpactofeachfactoronthechangeintotalfactorproductivity.
Results:
Accordingtothedataanalysis,theoveralldevelopmentofChina'swindpowerindustryhasbeensteadilyimproving,andtheaverageannualgrowthrateofinstalledcapacityhasreachedover25%from2010to2019.However,theoperationefficiencyoftheindustryhassomelimitations.FromtheperspectiveofTFPindex,theoverallefficiencyoftheindustryhasbeenimprovedslightlyduringtheperiodof2010to2019.Thetechnicalprogressisthemainimpetusfortheimprovementofthetotalfactorproductivity,withanaverageannualgrowthrateofabout9.5%,whilethescaleefficiencyandorganizationalefficiencyhaveshownaslightdeclineduringthe