Stratifying on treatment status

Jinyong Hahn, John Ham, Geert Ridder and Shuyang Sheng

Economics Letters, 2025, vol. 253, issue C

Abstract: We study the estimation of treatment effects using samples stratified by treatment status. Standard estimators of the average treatment effect and the local average treatment effect are inconsistent in this setting. We propose consistent estimators and characterize their asymptotic distributions.

Keywords: Stratification, Treatment effects, Asymptotic variance (search for similar items in EconPapers)
JEL-codes: C14 C21 C83 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecolet:v:253:y:2025:i:c:s0165176525002071

DOI: 10.1016/j.econlet.2025.112370

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