{
  "id": 5001703,
  "title": "When Guardrails Look Effective: Construct Validity Failures in LLM Agent Commerce Evaluation",
  "url": "https://urgent.news/2026/09/01/when-guardrails-look-effective-construct-validity-failures-in-llm",
  "topic": "ai",
  "section": "AI",
  "published": "2026-09-01T16:48:13.000Z",
  "source": {
    "name": "arXiv cs.AI",
    "slug": "arxiv-cs-ai",
    "url": "https://arxiv.org/abs/2609.01519v1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Interactive simulations increasingly evaluate policies in markets populated by language-model agents. Their outputs can look economic---prices, profits, consumer surplus, and welfare---without instantiating the behavior named in the claim. We audit this risk in a multi-turn buyer--seller testbed for configurable hotel transactions. An initial implementation reported welfare gains from two…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}