Arbeitspapier

Searching for information

This paper provides a microfounded information acquisition technology based on a simple framework with information search. When searchable information is limited, an agent encounters increasingly more redundant information in his search for new information. Redundancy slows down the learning process and generates decreasing returns. Furthermore, as multiple agents search for information from the same source, limited searchability leads to covariance as the acquired information becomes increasingly more overlapped among agents. Using an asymptotic approach, we construct a tractable mapping from resource (attention) allocations to the precision and the correlation of agents.information under varying degrees of searchability of information. We study two economic applica- tions with endogenous information acquisition using our model: (i) a "beauty contest" coordination game, and (ii) a noisy rational expectations equilibrium.

Sprache
Englisch

Erschienen in
Series: Sveriges Riksbank Working Paper Series ; No. 300

Klassifikation
Wirtschaft
Miscellaneous Mathematical Tools
Information, Knowledge, and Uncertainty: General
Criteria for Decision-Making under Risk and Uncertainty
Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
Portfolio Choice; Investment Decisions
Information and Market Efficiency; Event Studies; Insider Trading
Thema
information processing
concavity
precision
asymptotic analysis
coordination games
portfolio choice
financial equilibrium

Ereignis
Geistige Schöpfung
(wer)
Han, Jungsuk
Sangiorgi, Francesco
Ereignis
Veröffentlichung
(wer)
Sveriges Riksbank
(wo)
Stockholm
(wann)
2015

Handle
Letzte Aktualisierung
10.03.2025, 11:43 MEZ

Datenpartner

Dieses Objekt wird bereitgestellt von:
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.

Objekttyp

  • Arbeitspapier

Beteiligte

  • Han, Jungsuk
  • Sangiorgi, Francesco
  • Sveriges Riksbank

Entstanden

  • 2015

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