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econ.EM2023★ 4 cited
Efficient Semiparametric Estimation of Average Treatment Effects Under Covariate Adaptive Randomization
Ahnaf Rafi
Experiments that use covariate adaptive randomization (CAR) are commonplace in applied economics and other fields. In such experiments, the experimenter first stratifies the sample…
econ.EM2023
Bootstrap based asymptotic refinements for high-dimensional nonlinear models
Joel L. Horowitz, Ahnaf Rafi
We consider penalized extremum estimation of a high-dimensional, possibly nonlinear model that is sparse in the sense that most of its parameters are zero but some are not. We use…