What Makes a Sale? Rethinking End-to-End Seller--Buyer Retail Dynamics with LLM Agents

• URL: http://arxiv.org/abs/2604.04468v1
• Date: Mon, 06 Apr 2026 06:38:35 GMT
• Title: What Makes a Sale? Rethinking End-to-End Seller--Buyer Retail Dynamics with LLM Agents
• Abstract summary: We present RetailSim, an end-to-end retail simulation framework that models this pipeline in a unified environment.<n>We demonstrate its practical utility via decision-oriented use cases, including persona inference, seller-buyer interaction analysis, and sales strategy evaluation.
• Score: 22.408631930364788
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Evaluating retail strategies before deployment is difficult, as outcomes are determined across multiple stages, from seller-side persuasion through buyer-seller interaction to purchase decisions. However, existing retail simulators capture only partial aspects of this process and do not model cross-stage dependencies, making it difficult to assess how early decisions affect downstream outcomes. We present RetailSim, an end-to-end retail simulation framework that models this pipeline in a unified environment, explicitly designed for simulation fidelity through diverse product spaces, persona-driven agents, and multi-turn interactions. We evaluate RetailSim with a dual protocol comprising human evaluation of behavioral fidelity and meta-evaluation against real-world economic regularities, showing that it successfully reproduces key patterns such as demographic purchasing behavior, the price-demand relationship, and heterogeneous price elasticity. We further demonstrate its practical utility via decision-oriented use cases, including persona inference, seller-buyer interaction analysis, and sales strategy evaluation, showing RetailSim's potential as a controlled testbed for exploring retail strategies.

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