多元化、企业业绩与股权结构1——对中国上市公司的实证研究赵山肖晟(电子科技大学管理学院)(美国Vanderbilt大学经济系)CorporateDiversification,FirmPerformanceAndOwnershipStructureShanZhao(ManagementSchool,UESTC,JiansheRoad,Chengdu,Sichuan,China610054)ShengXiao(Dept
ofEconomics,VanderbiltUniversity,Nashville,TN37235,U
)Abstract:BasedonthedataintheAnnualReports(2000)of942listedfirmsinShanghaiandShenzhenStockExchanges,thispaperdiscussestworelatedissues:therelationshipbetweencorporatediversificationandfirmvalueandtheinfluenceofownershipstructureondiversification
Wefindthatthelevelofdiversificationisnotcorrelatedwithfirmvalue(measuredbyTobin’Q)andsalesgrowth,butnegativelycorrelatedwithROA;diversificationispositivelycorrelatedwiththeproportionoflegalpersonsharesratio,andnegativelycorrelatedwithproportionofstatesharesratio
However,inbigfirms,ther