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American Economic Review: Vol. 102 No. 3 (May 2012)

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Information Choice Technologies

Article Citation

Hellwig, Christian, Sebastian Kohls, and Laura Veldkamp. 2012. "Information Choice Technologies." American Economic Review, 102(3): 35-40.

DOI: 10.1257/aer.102.3.35

Abstract

Theories based on information costs or frictions have become increasing popular in macroeconomics and macro-finance. The literature has used various types of information choices, such as rational inattention, inattentiveness, information markets and costly precision. Using a unified framework, we compare these different information choice technologies and explain why some generate increasing returns and others, particularly those where agents choose how much public information to observe, generate multiple equilibria. The results can help applied theorists to choose the appropriate information choice technology for their application and to understand the consequences of that modeling choice.

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Authors

Hellwig, Christian (U Toulouse)
Kohls, Sebastian (Northwestern U)
Veldkamp, Laura (NYU)

JEL Classifications

D83: Search; Learning; Information and Knowledge; Communication; Belief
D11: Consumer Economics: Theory
D81: Criteria for Decision-Making under Risk and Uncertainty


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