The Multi-attribute Linear Ballistic Accumulator Model of Decision-making


Context effects - preference changes depending on the availability of other options - have wide ranging implications across applied and theoretical domains, and have driven the development of new dynamic models of multi-attribute and multi-alternative choice. We propose the Multi-attribute Linear Ballistic Accumulator (MLBA), a new dynamic model that provides a quantitative account of the co-occurrence of three context effects - attraction, similarity, and compromise - not only in traditional paradigms involving choices among hedonic stimuli but also of recent demonstrations of these effects with non-hedonic stimuli. The MLBA model has analytical solutions making it computationally easier to apply than previous dynamic models.

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