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Response time and revealed information structure

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  • Aoyama, Tomohito

Abstract

Consider a decision-maker who has an opportunity to wait for information before making a choice. He can obtain more information by waiting more, but this is costly. As a result, he endogenously determines the length of time to choose an alternative, which is called the response time. The present study models such a decision-maker as if he solves an optimal stopping problem. The model incorporates a dynamic information structure formalized as an evolving information partition, which is called filtration. I axiomatically characterize the model using behavioral data consisting of choices and response times that depend on choice situations and states. That is, from the data, we can identify filtration that governs the decision-maker's learning process as well as other model parameters. This result implies that using response time helps us understand the human cognitive process.

Suggested Citation

  • Aoyama, Tomohito, 2020. "Response time and revealed information structure," Discussion paper series HIAS-E-101, Hitotsubashi Institute for Advanced Study, Hitotsubashi University.
    • Handle: RePEc:hit:hiasdp:hias-e-101
    Note: November 30, 2020
    as

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    References listed on IDEAS

    as
    1. Youichiro Higashi & Kazuya Hyogo & Norio Takeoka, 2020. "Costly Subjective Learning," KIER Working Papers 1040, Kyoto University, Institute of Economic Research.
    2. Echenique, Federico & Saito, Kota, 2017. "Response time and utility," Journal of Economic Behavior & Organization, Elsevier, vol. 139(C), pages 49-59.
    3. Chambers, Christopher P. & Liu, Ce & Rehbeck, John, 2020. "Costly information acquisition," Journal of Economic Theory, Elsevier, vol. 186(C).
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    5. Nobuo Koida, 2017. "A multiattribute decision time theory," Theory and Decision, Springer, vol. 83(3), pages 407-430, October.
    6. Andrew Caplin & Mark Dean, 2015. "Revealed Preference, Rational Inattention, and Costly Information Acquisition," American Economic Review, American Economic Association, vol. 105(7), pages 2183-2203, July.
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    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    Response time; Subjective learning; Information acquisition;
    All these keywords.

    JEL classification:

    • D01 - Microeconomics - - General - - - Microeconomic Behavior: Underlying Principles
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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