Two rationality arguments are used to justify the link between condi-tional and unconditional preferences in decision theory: dynamic consistencyand consequentialism. Dynamic consistency requires that ex ante contingentchoices are respected by updated preferences. Consequentialism states...

This paper shows that, for CEU preferences, the axioms consquentialism, state independenceand conditional certainty equivalent consistency under updating characterise a family of capacities,called Genralised Neo-Additive Capacities (GNAC). This family contains as special casesamong others...