{"type": "article", "title": "Heckman-Corrected Epistemic Uncertainty: Selection on Unobservables Defeats Importance Weighting", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/heckman-corrected-epistemic-uncertainty-selection-on-unobservables-defeats", "original_source": "https://www.machinebrief.com/news/heckman-corrected-epistemic-uncertainty-selection-on-unobser-v7nj", "published": "2026-07-08T04:00:00+00:00", "accessed": "2026-07-08", "id": "heckman-corrected-epistemic-uncertainty-selection-on-unobservables-defeats"}