7、cyimprovingand
riskcontrolingarethetwoeternalthemesthatbanksshouldneverignore.Hereby,
efficiencyandsecurityisthefocusofthisessay.Variablesbyintroducingtheerror-freeopeningtoimprovetheefficiencymodel,and
thetranslogfunctionalformbasedontheSFAmodelwithBC(1995)stepintheopen
unde