# Study: AI systems cite news from fewer owners than traffic does, by up to 2.08x

Published: 2026-10-30T06:01:23.061Z · Source: arXiv (Carragher, Carley) (https://arxiv.org/abs/2610.40164v1)
Source date: 2026-10-29
Flags: arXiv preprint — not peer reviewed
Entities: ai-overviews, google

Researchers Peter Carragher and Kathleen Carley posted an arXiv preprint on October 29 measuring media concentration (how much of an audience or of citations goes to a few owners) across 77 countries. They built an ownership dataset of 9,761 digital news outlets from Wikipedia and Wikidata and derived traffic-weighted concentration indices for each country. Owner-level indices ran a median 1.30 times higher than outlet-level ones.

Applying the same measures to seven AI systems, they report that citation distributions were up to 2.08 times more concentrated than traffic. They also estimate that if Google AI Overviews mediated all organic search, the resulting rise in US concentration would be several times that associated with highly regulated media mergers and acquisitions. Their analyses indicate AI systems preferentially cite state-controlled outlets when prompted in that country's native language. The authors are releasing the dataset; this is a first version of the paper and has not been peer reviewed.

Why it matters: Concentration of AI citations is a measurable market-structure question that regulators already assess for media mergers, and this paper puts a number on how far AI answers deviate from the traffic publishers earn today.

## What this answers

**Are AI systems' news citations more concentrated than web traffic?**

Yes, per an arXiv preprint: citation distributions from major AI systems were up to 2.08 times more concentrated than traffic, measured across 77 countries and seven AI systems.

**Do AI systems cite state-controlled media?**

The authors say their analyses indicate AI systems preferentially cite state-controlled news outlets when prompted in that country's native language.


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