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

本文反映了部分歧义的概念。使用一个框架将歧义分解为不同的分析层，其中包括风险和模型不确定性，并允许对这些层采取不同的态度，我表明即使在歧义厌恶的情况下，部分歧义也可能比完全歧义更不可取。这种观察对解释与可用于确定模棱两可的瓮的潜在成分的部分信息有关的部分模棱两可的概念造成困难。描述了两个埃尔斯伯格式的思想实验，以进一步挑战部分歧义​​的含义，并讨论了基于更歧义关系的另一种解释。