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The Stata Journal
瀏覽：1364
日期：2024-05-09
T. Bartus 313 E(y)=F(δD+γz) where D is dummy variable and z is a vector of other regressors. Using two second-order Taylor series expansions around γz +δ and γz, the difference between (5) and (6)can be written as AMED −MEMD ≈ 1 2 F (γz,δ)Var(γz) (12) wher...看更多
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