摘要新冠疫情对我国居民的生产生活、企业的生存发展、国际间的贸易往来等各个方面都造成了极大的破坏，也对我国区域经济产生了巨大的影响。本文选取长江中游城市群的三个省会城市武汉、长沙、南昌，对这几个城市的经济发展进行主成分分析，确定了两个最能说明区域经济的数据，构建了长江中游地区经济发展指数。选取这三个城市2019年和2020年第一季度及2020年的数据进行对比，对比分析新冠肺炎对长江中游地区经济发展的影响。结果表明，疫情爆发之初，长江中游地区整体区域经济发展受到严重打击。随着国家应对新冠肺炎的措施日趋成熟，疫情得到迅速控制，工作和生产有序恢复，城市经济发展指数呈现明显回升趋势。最后，对长江中游地区在疫情防控常态化阶段的经济发展提出了相应的对策和建议。【关键词】新冠疫情；长江中游城市群经济；区域经济发展AbstractCOVID-19hascausedgreatdamagetotheproductionandlifeofourresidents,thesurvivalanddevelopmentofenterprises,internationaltradeandotheraspects,andhasalsohadahugeimpactonChina'sregionaleconomy.ThispaperselectsWuhan,ChangshaandNanchang,thethreeprovincialcapitalsoftheurbanagglomerationinthemiddlereachesoftheYangtzeRiver,makesprincipalcomponentanalysisontheeconomicdevelopmentofthesecities,determinestwodatathatcanbestexplaintheregionaleconomy,andconstructstheeconomicdevelopmentindexofthemiddlereachesoftheYangtzeRiver.Novelcoronaviruspneumoniawasusedtocomparethedataofthethreecityin2019and2020inthefirstquarterand2020.Theresultsshowedthatatthebeginningoftheoutbreak,theoverallregionaleconomicdevelopmentinthemiddlereachesoftheYangtzeRiverwasseriouslyhit.Novelcoronaviruspneumoniaisbeingrapidlycontrolledbythestate.Theepidemicsituationhasbeenrapidlycontrolled,andtheworkandproductionhavebeenrestoredorderly,andthecity'seconomicdevelopmentindexhasshownamarkedupwardtrend.Finally,thecorrespondingcountermeasuresandsuggestionsareputforwardfortheeconomicdevelopmentofthemiddlereachesoftheYangtzeRiverinthenormalizationstageofepidemicpreventionandcontrol.【Keywords】COVID-19;EconomicdevelopmentofurbanagglomerationsinthemiddlereachesoftheYangtzeRiver;Regionaleconomicdevelopment目录1.绪论.................................................................11.1研究背景..............................................................................11.2研究目的和意义.....................................................................21.2.1研究目的...........................................................................21.2.2研究意义...........................................................................22.文献综述及理论基础..............................................22.1国内外研究文献综述..............................................................22.1.1国外研究文献综述..............................................................22.1.2国内研究文献综述..............................................................42.1.3文献综述评述.....................................................................43研究方法和数据来源...............................................53.1研究方法介绍........................................................................53.2主成分分析的基本思想...........................................................63.3数据来源..............................................................................64实证分析与研究....................................................84.1指标选择..............................................................................84.2应用主成分分析.......................
