Nonparametric efficient inference for network quantile causal effects under partial interference

• URL: http://arxiv.org/abs/2604.13008v1
• Date: Tue, 14 Apr 2026 17:42:07 GMT
• Title: Nonparametric efficient inference for network quantile causal effects under partial interference
• Abstract summary: We study network causal effects on outcome quantiles in the presence of partial interference.<n>We develop a general nonparametric efficiency theory for estimating these network quantile causal effects.<n>We leverage a three-way cross-fitting procedure that avoids direct estimation of the conditional outcome distribution.
• Score: 7.8355985789666684
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Interference arises when the treatment assigned to one individual affects the outcomes of other individuals. Commonly, individuals are naturally grouped into clusters, and interference occurs only among individuals within the same cluster, a setting referred to as partial interference. We study network causal effects on outcome quantiles in the presence of partial interference. We develop a general nonparametric efficiency theory for estimating these network quantile causal effects, which leads to a nonparametrically efficient estimator. The proposed estimator is consistent and asymptotically normal with parametric convergence rates, while allowing for flexible, data-adaptive estimation of complex nuisance functions. We leverage a three-way cross-fitting procedure that avoids direct estimation of the conditional outcome distribution. Simulations demonstrate adequate finite-sample performance of the proposed estimators, and we apply the methods to a clustered observational study.

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