神戸大学附属図書館デジタルアーカイブ
入力補助
English
カテゴリ
学内刊行物
ランキング
アクセスランキング
ダウンロードランキング
https://hdl.handle.net/20.500.14094/90008456
このアイテムのアクセス数:
8
件
(
2024-04-18
11:08 集計
)
閲覧可能ファイル
ファイル
フォーマット
サイズ
閲覧回数
説明
90008456 (fulltext)
pdf
600 KB
6
メタデータ
ファイル出力
メタデータID
90008456
アクセス権
open access
出版タイプ
Version of Record
タイトル
Three heads are better than two: Comparing learning properties and performances across individuals, dyads, and triads through a computational approach
著者
著者ID
A0683
研究者ID
1000020294192
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=8460cb8627a53073520e17560c007669
著者名
Harada, Tsutomu
原田, 勉
ハラダ, ツトム
所属機関名
経営学研究科
収録物名
PLoS ONE
巻(号)
16(6)
ページ
e0252122
出版者
Public Library of Science
刊行日
2021-06-17
公開日
2021-07-26
抄録
Although it is considered that two heads are better than one, related studies argued that groups rarely outperform their best members. This study examined not only whether two heads are better than one but also whether three heads are better than two or one in the context of two-armed bandit problems where learning plays an instrumental role in achieving high performance. This research revealed that a U-shaped correlation exists between performance and group size. The performance was highest for either individuals or triads, but the lowest for dyads. Moreover, this study estimated learning properties and determined that high inverse temperature (exploitation) accounted for high performance. In particular, it was shown that group effects regarding the inverse temperatures in dyads did not generate higher values to surpass the averages of their two group members. In contrast, triads gave rise to higher values of the inverse temperatures than their averages of their individual group members. These results were consistent with our proposed hypothesis that learning coherence is likely to emerge in individuals and triads, but not in dyads, which in turn leads to higher performance. This hypothesis is based on the classical argument by Simmel stating that while dyads are likely to involve more emotion and generate greater variability, triads are the smallest structure which tends to constrain emotions, reduce individuality, and generate behavioral convergences or uniformity because of the "two against one" social pressures. As a result, three heads or one head were better than two in our study.
カテゴリ
経営学研究科
学術雑誌論文
権利
© 2021 Tsutomu Harada.
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
詳細を表示
資源タイプ
journal article
言語
English (英語)
eISSN
1932-6203
OPACで所蔵を検索
CiNiiで学外所蔵を検索
関連情報
DOI
https://doi.org/10.1371/journal.pone.0252122
ホームへ戻る