1EconomicconsequencesShanghaiUniversityofFinanceandEconomicsYUANHONGQI2DIFINITIONZeff(1978):theimpactofaccountingreportsonthedecisionmakingbehaviorofbusiness,governmentandcreditorsTheessentialoftheconceptisthattheaccountingpolicychoicecanaffectthefirmvalue.TheisanoppositeviewtotheimplicationofEMH.ManagementisignoredinEMHwhileemphasizedineconomicconsequences.Ifachangeofaccountingpoli...