Doubly Robust Semiparametric Difference-in-Differences Estimators with High-Dimensional Data

7 Sep 2020Yang NingSida PengJing Tao

This paper proposes a doubly robust two-stage semiparametric difference-in-difference estimator for estimating heterogeneous treatment effects with high-dimensional data. Our new estimator is robust to model miss-specifications and allows for, but does not require, many more regressors than observations... (read more)

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