后验可分离信息代价

IF 10.5 1区 经济学 Q1 ECONOMICS
Tommaso Denti
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引用次数: 34

摘要

我们提供了可测试的条件,在这些条件下,获取信息的成本是由不确定性度量(例如,熵)的预期减少给出的。在后可分性的名义下的假设,在理性不注意的文献中几乎是普遍的;然而,缺乏可测试的特征描述。在实验数据的应用中,我们指出了后验可分性是(也不是)信息成本的一个令人信服的假设的情况;我们提出一个概括来解决它的一些缺点。我们还展示了如何从可观察的选择行为中识别和估计信息的非参数成本。(凝胶c91, d11, d12, d81, d91)
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Posterior Separable Cost of Information
We provide testable conditions under which the cost of acquiring information is given by the expected reduction of a measure of uncertainty (e.g., entropy). The assumption, under the name of posterior separability, is nearly universal in the literature of rational inattention; yet, a testable characterization has been lacking. In applications to experimental data, we indicate situations in which posterior separability is—and is not—a compelling assumption for the cost of information; we propose a generalization to address some of its shortcomings. We also show how to identify and estimate nonparametrically the cost of information from observable choice behavior. (JEL C91, D11, D12, D81, D91)
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来源期刊
CiteScore
18.60
自引率
2.80%
发文量
122
期刊介绍: The American Economic Review (AER) stands as a prestigious general-interest economics journal. Founded in 1911, it holds the distinction of being one of the nation's oldest and most esteemed scholarly journals in economics. With a commitment to academic excellence, the AER releases 12 issues annually, featuring articles that span a wide spectrum of economic topics.
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