arXiv:2508.12045v3 Announce Type: replace-cross Abstract: Although nudge strategies can influence behavior, their effectiveness varies across individuals, highlighting the need for personalized nudge...
arXiv:2602. 09802v2 Announce Type: replace Abstract: As Large Language Models (LLMs) are increasingly deployed in applications such as travel assistance and purchasing support, they are often required to make subjective choices on behalf of users in settings where no objectively correct answer exists.
The paper proposes a new method for generating synthetic survey responses that uses declared aggregate preference anchors to create group-indexed choice policies, avoiding the mixing of inference-time information with pretraining associations. It introduces a parameter‑efficient adapter trained via Direct Preference Optimization to map GPS coordinates to synthetic responses, and evaluates these adapters on World Values Survey items, showing they recover imposed labels and exhibit strong correlation with GPS trust scores. The study demonstrates that anchored policies can preserve aggregate signals while not necessarily mirroring human response patterns, offering an inspectable construction and evaluation framework that separates anchor transfer from human criterion agreement.
arXiv:2610.20472v1 Announce Type: new Abstract: Cultural attitudes and social norms evolve over time, yet most cultural benchmarks for large language models (LLMs) treat culture as a static attribute...
Decision Models (DMs) are a new class of AI models that provide fast responses and output a probability distribution over a fixed set of options. In a first evaluation, 10 DMs were compared with 8 Large Language Models (LLMs) across three economic settings—a household spending survey, classic economic games, and a labour‑market field experiment. Frontier DMs, those scoring highest on general decision‑making benchmarks, reproduced human response variation more closely than LLMs in all settings, matched LLMs on modal responses in the spending survey, and were roughly ten times faster and over a hundred times cheaper than the fastest LLM.
The paper investigates how large language models (LLMs) represent national cultural change over time, using more than two decades of World Values Survey data and the Inglehart‑Welzel cultural map. It finds that while LLMs generally place countries near their most recent surveyed positions, their representations lag behind current data, under‑capture the magnitude of change, introduce spurious movements, and rarely reproduce trajectory reversals. These temporal inaccuracies reveal a flattening effect that limits the models’ cultural awareness and raises concerns for evaluation, representational harms, and governance of culturally aware AI systems.
The study examines how large language models (LLMs) respond to simultaneous cultural identity cues, comparing explicit country names with implicit language cues. Using World Values Survey probing and open‑ended sociopolitical generation, it finds that language cues shift responses more than explicit cues but not toward the named country’s distribution, while explicit cues produce more differentiated value changes. Across 1.6 million responses, naming a country narrows the gap to the model’s own country‑specific answers by 30–44%.
arXiv:2608. 07367v1 Announce Type: new Abstract: As Large Language Models (LLMs) are increasingly used as a primary source of information and advice, understanding their alignment to humans in terms of values becomes a pressing concern.
The paper introduces Cultural Divergence Preservation (CDP), a new diagnostic for evaluating whether large language models (LLMs) preserve cross‑country differences when used as synthetic survey respondents. CDP uses a single human calibration to detect cultural flattening (reduced divergence) or caricature (increased divergence) and is shown to vary monotonically with cross‑country divergence, unlike conventional Jensen–Shannon divergence metrics. Experiments across multiple LLM backbones, prompting methods, and survey domains reveal that CDP uncovers systematic discrepancies with traditional fidelity metrics, highlighting that methods favored by those metrics can still produce strong flattening.
arXiv:2608. 06085v1 Announce Type: new Abstract: Survey-country metadata can improve an LLM's forecast of an individual response when informative, yet the same cue may redirect the forecast when assigned at random.
arXiv:2607. 24782v1 Announce Type: new Abstract: LLM behavior may be conditioned by human identity in several ways: they may be asked to adapt to users, role-play populations, or forecast how people would answer value-laden questions.
The paper introduces Prompts to Proxies (P2P), a two‑stage inference‑time system that uses structured attribute‑based prompting and entropy‑guided sampling to build a diverse proxy pool, followed by L1‑regularized regression to create a compact weighted ensemble that matches aggregate survey responses. P2P achieves low mean squared error on American Trends Panel data and competitive performance on World Values Survey cross‑locale experiments, outperforming baseline prompting and demographic‑conditioning methods while using minimal training data. The authors argue that this preference reconstruction approach offers a lightweight, externally verifiable alternative for aligning large language model proxies with target human populations.