The design of experiments involves a compromise between covariate balance and
robustness. This article provides a formalization of this tradeoff and describes an …

There is a long debate in experimental design between the classic randomization design of
Fisher, Yates, Kempthorne, Cochran, and those who advocate deterministic assignments …

Classical randomized experiments, equipped with randomization-based inference, provide
assumption-free inference for treatment effects. They have been the gold standard for …

Blocking is commonly used in randomized experiments to increase efficiency of estimation.
A generalization of blocking removes allocations with imbalance in covariate distributions …

Recently, there has been increasing interest in the use of heavily restricted randomization
designs which enforce balance on observed covariates in randomized controlled trials …