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econ.EM2019
Clustering and External Validity in Randomized Controlled Trials
Antoine Deeb, Clément de Chaisemartin
The randomization inference literature studying randomized controlled trials (RCTs) assumes that units' potential outcomes are deterministic. This assumption is unlikely to hold, a…
econ.EM2019★ 2 cited
At What Level Should One Cluster Standard Errors in Paired and Small-Strata Experiments?
Clément de Chaisemartin, Jaime Ramirez-Cuellar
In matched-pairs experiments in which one cluster per pair of clusters is assigned to treatment, to estimate treatment effects, researchers often regress their outcome on a treatme…