that a decision maker is unaware of an event if and only if her choices reveal that the event is null and the negation of … the event is null. Moreover, I characterize impersonal expected utility that is behaviorally indistinguishable from …

that a decision maker is unaware of an event if and only if her choices reveal that the event is "null" and the negation of … the event is "null". Moreover, I characterize "impersonal" expected utility that is behaviorally indistinguishable from …

that a decision maker is unaware of an event if and only if her choices reveal that the event is "null" and the negation of … the event is "null". Moreover, I characterize "impersonal" expected utility that is behaviorally indistinguishable from …