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math.ST2018
Ridge Rerandomization: An Experimental Design Strategy in the Presence of Collinearity
Zach Branson, Stephane Shao
Randomization ensures that observed and unobserved covariates are balanced, on average. However, randomizing units to treatment and control often leads to covariate imbalances in r…
math.ST2018
Sampling-based randomized designs for causal inference under the potential outcomes framework
Zach Branson, Tirthankar Dasgupta
We establish the inferential properties of the mean-difference estimator for the average treatment effect in randomized experiments where each unit in a population is randomized to…