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WP27

The Invisible Hand of Machines: Price Discovery in Markets Populated by LLM Agents

Simon-Pierre Boucher · Cahiers de recherche UQO · octobre 2026 · v1.0

What happens to price discovery when a growing share of the traders in a market are autonomous language-model agents? The paper builds an event-sourced continuous double-auction exchange with exact accounting, a latent dividend process that separates fundamental value from public value and transaction price, seven…