Fishburn, Peter C. - In: Management Science 17 (1971) 11, pp. 672-678
A relation <<sup>L</sup> on a set of real vectors a, b, ... is a lexicographic order when a <<sup>L</sup>b if and only if a \ne b and for every j such that b<sub>j</sub> < a<sub>j</sub> there is an i < j such that a<sub>i</sub> < b<sub>i</sub>. A simple and direct derivation is given for a multidimensional utility function whose lexicographically-ordered expected utility vectors...</b<sub></j></a<sub></<sup></<sup>