When coherent preferences may not preserve indifference between equivalent random variables : A price for unbounded utilities

Abstract

We extend de Finetti’s (1974) theory of coherence to apply also to unbounded random variables. We show that for random variables with mandated infinite prevision, such as for the St. Petersburg gamble, coherence precludes indifference between equivalent random quantities. That is, we demonstrate when the prevision of the difference between two such… (More)

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