Аннотация
We provide a sharp identification region for discrete choice models where
consumers' preferences are not necessarily complete and only aggregate choice
data is available. Behavior is modeled using an upper and a lower utility for
each alternative so that non-comparability can arise. The identification region
places intuitive bounds on the probability distribution of upper and lower
utilities. We show that the existence of an instrumental variable can be used
to reject the hypothesis that the preferences of all consumers are complete. We
apply our methods to data from the 2018 mid-term elections in Ohio.
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