We commonly think of information as an instrument for better decisions, yet evidence suggests that people often decline free information in nonstrategic scenarios. This paper provides a theory for how a dynamically-consistent decision maker can be averse to partial information as a consequence of ambiguity aversion. It introduces a class of recursive preferences on an extended choice domain, which allows the preferences to depend on how information is dynamically revealed and to depart from the standard expected-utility theory. A new notion of ambiguity aversion, called Event Complementarity, exactly characterizes aversion to partial information. Familiar static ambiguity-averse preferences are embedded into the general recursive model, in which conditions for partial information aversion are identified. The findings suggest that Event Complementarity overlaps with yet still differs from the conventional notion of ambiguity aversion.

中文翻译：

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对部分信息和歧义的偏好

我们通常认为信息是做出更好决策的工具，但有证据表明，人们经常在非战略情景中拒绝免费信息。本文提供了一个理论，说明动态一致的决策者如何因歧义厌恶而拒绝部分信息。它在扩展的选择域上引入了一类递归偏好，它允许偏好依赖于信息是如何动态显示的，并且偏离了标准的预期效用理论。一个新的歧义厌恶概念，称为事件互补性，准确地描述了对部分信息的厌恶。熟悉的静态歧义厌恶偏好被嵌入到一般递归模型中，其中确定了部分信息厌恶的条件。