 It should be noted that RDU is itself a special case of what is perhaps the best known alternative to SEU, Kahneman &amp; Tversky’s Cumulative Prospect Theory (Tversky &amp; Kahneman 1992), which earned Kahneman a Nobel Prize in Economics in 2002. This model generalises RDU by introducing a reference point, an outcome that partitions the set of outcomes into positive and negative subsets, according to whether these are strictly preferred or strictly dispreferred to it. Two probability transformation functions, \(w^+\) and \(w^-\), are then involved in the preference functional: \(w^+\) in determining the utility contributions of the negative outcomes and \(w^-\) playing an analogous role in relation to that of the positive ones. RDU is recovered when \(w^+\) is the dual of \(w^+\).