調べた例文を記録して、効率よく覚えましょう
Weblio会員無料で登録できます
履歴機能
過去に調べた単語を確認できる
語彙力診断
診断回数が4回に増加
マイ単語帳
便利な学習機能付き
マイ例文帳
文章で意味を理解できる
ウィキペディア英語版
出典：Wikipedia
Planning fallacy
出典:『Wikipedia』 (2011/05/12 11:49 UTC 版)
英語による解説
ウィキペディア英語版からの引用
- 引用
The planning fallacy is a tendency for people and organizations to underestimate how long they will need to complete a task, even when they have past experience of similar tasks over-running. The term was first proposed in a 1979 paper by Daniel Kahneman and Amos Tversky. Since then the effect has been found for predictions of a wide variety of tasks, including tax form completion, school work, furniture assembly, computer programming and origami. The bias only affects predictions about one's own tasks; when uninvolved observers predict task completion times, they show a pessimistic bias, overestimating the time taken. In 2003, Lovallo and Kahneman proposed an expanded definition as the tendency to underestimate the time, costs, and risks of future actions and at the same time overestimate the benefits of the same actions. According to this definition, the planning fallacy results in not only time overruns, but also cost overruns and benefit shortfalls.
- Wikipedia
- Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL).
Weblio英和・和英辞典に掲載されている「Wikipedia英語版」の記事は、WikipediaのPlanning fallacy (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。
