Intrinsic Preference for Information
研究人们不仅为制定计划、也出于内在原因而重视信息时,这种信息偏好与风险态度之间的关系。作者推广了Kreps-Porteus递归预期效用模型,发现信息偏好与风险偏好之间存在几何类比,并用替代性质刻画了内在信息偏好。
Suppose agents value information not only to make contingent plans but also intrinsically. How are such attitudes toward information related to attitudes toward risk? We generalize the Kreps–Porteus recursive expected utility model, dropping both recursivity and expected utility. There is a geometric analogy between risk and information. We characterize intrinsic information loving, in general, by a substitution property analogous to multivariate risk loving; and, for smooth preferences, by the convexity of Gateaux derivatives. Even with recursivity, preference for information does not imply expected utility: we provide an example. We examine connections between information loving and risk aversion for early- and late-resolving risks.Journal of Economic LiteratureClassification Numbers: D80, D81.