02/07/2026
AI-SOR Framework
The AI-enhanced Stimulus–Organism–Response (AI-SOR) framework extends the classical S-O-R model by formalizing the Organism component as an AI-based cognitive system that captures behavioral decision-making under uncertainty. In this framework, external stimuli such as market prices, volatility shocks, and unstructured information constitute the stimulus layer. These inputs are processed through an AI-driven Organism layer that performs perception, preference learning, and belief updating.
From a behavioral finance perspective, the Organism layer operationalizes latent psychological constructs including loss aversion, mental accounting, sentiment, and time-varying risk aversion. By explicitly modeling bounded rationality, AI-SOR explains asymmetric reactions to gains and losses and the amplification of behavior during periods of market stress. The response layer generates constrained, explainable decision signals—such as portfolio adjustment recommendations or risk warnings—rather than autonomous trading actions. In robo-advisory applications, AI-SOR serves as a behavioral interface that converts investor-specific sentiment and belief updates into structured, confidence-weighted views compatible with portfolio construction frameworks such as the Black–Litterman model, thereby preserving diversification, risk discipline, and fiduciary consistency.