ナガオカ　ナルト   NAGAOKA Naruto   永岡　成人    所属   広島修道大学  経済科学部    職種   准教授
言語種別	英語
発行・発表の年月	2022/06
形態種別	学術論文
標題	Communication and Information Aggregation for Multitype Information
執筆形態	共著
掲載誌名	SSRN Working Paper Series
掲載区分	国外
著者・共著者	Naruto Nagaoka, Tomoya Tajika
概要	This study introduces communication into the Condorcet jury model with uncertain precision of signals and examine how communication and majority voting aggregate multitype information. We consider common-value voting when the precision state, independent of the payoff-relevant state, determines the meaning and precision of decision-makers' (DMs') private signals related to the payoff-relevant state. Multiple senders with the same objective as DMs receive noisy signals about the precision state and send messages to the DMs simultaneously. We focus on equilibria in which when the sender's message suggests the possibility of a particular precision state, DMs vote presumes that the precision state is the particular state. We demonstrate that when the number of DMs is sufficiently large, senders transmit no information and hence information aggregation fails. Furthermore, we propose that, if senders' messages are aggregated to the binary level, information transmission is successful.