简介：Dataenvelopmentanalysis(DEA)modeliswidelyusedtoevaluatetherelativeefficiencyofproducers.Itisakindofobjectivedecisionmethodwithmultipleindexes.However,thetwobasicmodelsfrequentlyusedatpresent,theC2RmodelandtheC2GS2modelhavelimitationswhenusedalone,resultinginevaluationsthatareoftenunsatisfactory.Inordertosolvethisproblem,amixedDEAmodelisbuiltandisusedtoevaluatethevalidityofthebusinessefficiencyoflistedcompanies.AnexplanationofhowtousethismixedDEAmodelisofferedanditsfeasibilityisverified.
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