• Computer Science > Artificial Intelligence [Submitted on 25 Feb 2026] Title:2-Step Agent: A Framework for the Interaction of a Decision Maker with AI Decision Support View PDF HTML (experimental)Abstract:Across a growing number of fields, human decision making is supported by predictions from AI models • However, we still lack a deep understanding of the effects of adoption of these technologies • In this paper, we introduce a general computational framework, the 2-Step Agent, which models the effects of AI-assisted decision making • Our framework uses Bayesian methods for causal inference to model 1) how a prediction on a new observation affects the beliefs of a rational Bayesian agent, and 2) how this change in beliefs affects the downstream decision and subsequent outcome • Using this framework, we show by simulations how a single misaligned prior belief can be sufficient for decision support to result in worse downstream outcomes compared to no decision support • Our results reveal several potential pitfalls of AI-driven decision support and highlight the need for thorough model documentation and proper user training

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  • Computer Science > Artificial Intelligence [Submitted on 25 Feb 2026] Title:2-Step Agent: A Framework for the Interaction of a Decision Maker with AI Decision Support View PDF HTML (experimental)Abstract:Across a growing number of fields, human decision making is supported by predictions from AI models. However, we still lack a deep understanding of the effects of adoption of these technologies. In this paper, we introduce a general computational framework, the 2-Step Agent, which models the effects of AI-assisted decision making. Our framework uses Bayesian methods for causal inference to mod

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