What is partial ambiguity?

Abstract This paper reflects on the notion of partial ambiguity. Using a framework decomposing ambiguity into distinct layers analysis, among which are risk and model uncertainty , allowing for different attitudes toward these layers, I show that may prove less desirable than full ambiguity, even under aversion. observation poses difficulties interpreting in relation to information available determine potential compositions an ambiguous urn. Two Ellsberg-style thought experiments described challenge meaning further, alternative interpretation, based more relation, is discussed.