Oaxaca-Blinder as a Reweighting Estimator
证明经典的Oaxaca-Blinder反事实均值回归估计量实际上是一种基于线性模型的倾向得分重加权估计量，该模型用于估计被处理的条件几率。
The classic regression based estimator of counterfactual means studied by Ronald Oaxaca (1973) and Alan Blinder (1973) is shown to constitute a propensity score reweighting estimator based upon a linear model for the conditional odds of being treated.