Cross-Sectional Conditional Independence in Stationary Time Series: Graphical Equivalence and Completeness of Collider Separation
Hubert Drazkowski
In Conference on Causal Learning and Reasoning (CLeaR), 2026
Proximal variables regression estimates effects in the presence of unobserved confounding by using conditionally separated proxies. We study a structural violation caused by variables that act simultaneously as mediators and colliders between them.