The Excluded Entity: Organic Resolution and Compositional Suppression in Google AI Overview

Third paper in the Liquidation Studies research program. Empirical worked example supplementing The Single-Owner Discount (DOI: 10.5281/zenodo.20290865) and The Evaluator Exists (DOI: 10.5281/zenodo.20293561). A generative-search system exhibits Entity-Level Compositional Suppression (ECS) when it excludes the dominant organic-resolution entity from the AI Overview admitted source set and composes a substitute answer from less query-responsive entities, despite the correct entity occupying the top organic search results. Three captures from Google AI Mode on May 19, 2026 demonstrate the mechanism through three sub-mechanisms: Suppressed Entity Defaulting, Source-Window Exclusion, and Compositional Substitution. The deposit introduces the Composition Divergence Index (CDI) as a measurable signature, operationalizes the counter-exclusion report protocol from The Evaluator Exists, and situates the finding within the active EU and UK regulatory record on AI Overviews. Supplementary files include three PNG screenshots of the captured behaviors with full source-window and standard-results documentation.