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quant: reading 12: page 425
why” 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 inconsisitent”…
any variable suppose to be independent with other variable, if one is correlated with other variable, it shouldn’t included in the regression analysis, is it? I don’t understand this statement. thanks. |
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发表于 2013-4-6 00:03
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