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Synthesizing Behaviorally-Grounded Reasoning Chains: A Data-Generation Framework for Personal Finance LLMs

Created by
  • Haebom

Author

Akhil Theerthala

Outline

This paper presents a novel framework for personalized financial advice that considers users' goals, constraints, risk tolerance, and jurisdiction. While previous research on large-scale language models (LLMs) has focused on support systems for investors and financial planners, this study proposes a framework for constructing supervisory data for end-to-end financial advice systems by incorporating financial contexts relevant to behavioral finance research. Using this framework, we generate a 19,000-parameter inference dataset and fine-tune the Qwen-3-8B model, demonstrating that it achieves comparable performance in terms of factual accuracy, fluency, and personalization to much larger models (14 to 32 billion parameters) at an 80% lower cost.

Takeaways, Limitations

Takeaways:
A new framework integrating behavioral finance research suggests the potential for building cost-effective, personalized financial advice systems.
Achieve performance similar to large-scale models with an 8 billion-parameter model, while increasing cost efficiency.
Ensuring reproducibility and suggesting research advancement potential through the release of 19,000 high-quality inference datasets.
Limitations:
The dataset size (19,000 items) may be relatively small compared to datasets used for training other large-scale models.
Further validation of long-term performance and stability in real-world financial advice situations is needed.
Additional evaluation of generalization performance across different jurisdictions and user characteristics is needed.
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