A Unique Subjective State Space for Unforeseen Contingencies
A Unique Subjective State Space for Unforeseen Contingencies
复制标题
针对不可预见的突发事件的独特主观状态空间
DOI：
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发表时间：
1997
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通讯作者：
Eddie Dekel
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作者：
Eddie Dekel
我们公理化表征的机会集表现出偏好的灵活性，解释为不可预见的突发事件的模型的偏好表示。在这种表示中，代理人的行为就好像她对一组可能的未来偏好有一个连贯的先验，每个偏好都是一个预期效用偏好。我们表明，状态空间基本上是唯一的限制，所有未来的偏好是预期的效用偏好，即使没有这个限制是最小的。最后，由于状态空间是确定的，因此状态之间的可加性是有意义的，因为所有表示本质上都是可加的。
We axiomatically characterize a representation of preferences over opportunity sets which exhibit a preference for flexibility, interpreted as a model of unforeseen contingencies. In this representation, the agent acts as if she had a coherent prior over a set of possible future preferences, each of which is an expected-utility preference. We show that the state space is essentially unique given the restriction that all future preferences are expected-utility preferences and is minimal even without this restriction. Finally, because the state space is identified, the additivity across states is meaningful in the sense that all representations are intrinsically additive.