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Human decision making behavior is highly complex and can be influenced by a wide variety of factors. Researchers typically try to simplify consumer preferences and choices. We try to replicate a complex reality using a model that captures the main drivers of choice.
Conjoint analysis is one very effective method for isolating these drivers, with Random Utility Model (RUM) as the most commonly used model and its alternative, lesser known model the Random Regret Model (RRM). Both approaches have their pros and cons and each is more or less suitable in different market situations. Published exclusively on WARC, our researchers made an effort to improve the predictive validity of conjoint results by comparing and combining the utility model and regret model.
By means of a case study, we posed the question: Would a hybrid model lead to more realistic results?
This article looks at the comparison between two approaches to consumer decision behaviour – the utility model (RUM) and Random Regret Modeling (RRM) – and offers a hybrid solution to provide a
more effective framework:
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