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“If an omitted variable is correlated with variables already included in the model, coefficient estimates will be biased and inconsistent and standard errors will also be inconsistent.“课后题22的statement我看有些老师解释的是”如果遗漏了重要变量的话,那么误差项就会包含那个自变量的相关信息,因为原本属于那个遗漏变量的解释力度现在被夹杂到误差中了,那么误差项就会与自变量相关“说误差与自变量相关是说的和遗漏的自变量相关吧,这个statement说的可是与已经在模型里的自变量相关,这不是一个意思吧?
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