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Moral Mimicry: Large Language Models Produce Moral Rationalizations Tailored to Political Identity

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arxiv 2209.12106 v2 pith:TABOTSIV submitted 2022-09-24 cs.CL

classification cs.CL
keywords moralllmsbiasesmimicrymodelspoliticalidentitylanguage
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Large Language Models (LLMs) have demonstrated impressive capabilities in generating fluent text, as well as tendencies to reproduce undesirable social biases. This study investigates whether LLMs reproduce the moral biases associated with political groups in the United States, an instance of a broader capability herein termed moral mimicry. This hypothesis is explored in the GPT-3/3.5 and OPT families of Transformer-based LLMs. Using tools from Moral Foundations Theory, it is shown that these LLMs are indeed moral mimics. When prompted with a liberal or conservative political identity, the models generate text reflecting corresponding moral biases. This study also explores the relationship between moral mimicry and model size, and similarity between human and LLM moral word use.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The yes-no bias of large language models reflects answer order and wording, not shifts in moral judgment

    cs.CL 2026-07 accept novelty 7.0 of 10

    LLM yes-no bias on moral dilemmas is an order-plus-lexical surface artifact, not a moral shift; models have a nearly format-invariant graded stance that the standard binary readout confounds.

  2. Language Agents as Digital Representatives in Collective Decision-Making

    cs.LG 2025-02 conditional novelty 6.0 of 10

    Fine-tuned language models can generate individual critiques that, when fed into a consensus-building process, yield outcomes close to those produced by real participants.

  3. Examining Alignment of Large Language Models through Representative Heuristics: The Case of Political Stereotypes

    cs.CL 2025-01 conditional novelty 6.0 of 10

    LLMs systematically inflate Republican positions and deflate Democratic positions relative to human survey responses, consistent with representativeness heuristics.

  4. Value Compass Benchmarks: A Platform for Fundamental and Validated Evaluation of LLMs Values

    cs.AI 2025-01 conditional novelty 5.0 of 10

    Value Compass Benchmarks is a live, self-evolving platform that scores 33 LLMs across 27 value dimensions from four value systems, aiming to reveal true behavioral alignment with human values.

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