Richard H. Thaler, Nudge, not sludge, 361 Science 431 (2018)

Sunstein and I stressed that the goal of a conscientious choice architect is to help people make better choices “as judged by themselves.” But what about activities that are essentially nudging for evil? This “sludge” just mucks things up and makes wise decision-making and prosocial activity more difficult.

ナッジの法政策への利用

法学者によって行動経済学について書かれた論文として,尾崎安央「『行動経済学に基づく法と経済学』と会社法制—公開型株式会社における株主像を検討するにあたって—」尾崎安央=川島いづみ編『石山卓磨先生上村達男先生還暦記念論文集比較企業法の現在—その理論と課題』241頁(成文堂 ,2011)があります。その中で,Richard H. Thaler & Cass R. Sunstein, Nudge: Improving Decisions About Health, Wealth, and Happiness (update ed. 2009)1 が言及されています2

続きを読む

  1. 邦訳は,リチャード・セイラー=キャス・サンスティーン(遠藤真美訳)『実践行動経済学 健康、富、幸福への聡明な選択』(日経BP社,2009) []
  2. 尾崎安央「『行動経済学に基づく法と経済学』と会社法制—公開型株式会社における株主像を検討するにあたって—」尾崎安央=川島いづみ編『石山卓磨先生上村達男先生還暦記念論文集比較企業法の現在—その理論と課題』241頁,260頁注22(成文堂 ,2011)(引用省略)。 []

Shiller教授による市場の効率性

何度も同じものを読まされるのに飽きているかもしれませんが,New York Timesに掲載されたShiller教授の説明であれば,一読の価値があるかもしれません。

Actually, I do not completely oppose the efficient-markets theory. I have been calling it a half-truth. If the theory said nothing more than that it is unlikely that the average amateur investor can get rich quickly by trading in the markets based on publicly available information, the theory would be spot on. … But the theory is commonly thought, at least by enthusiasts, to imply much more. Notably, it has been argued that regular movements in the markets reflect a wisdom that transcends the best understanding of even the top professionals, and that it is hopeless for an ordinary mortal, even with a lifetime of work and preparation, to question pricing. Market prices are esteemed as if they were oracles.

himaginary氏の日記にて,抄訳をご覧いただけます。また,himaginary氏の日記において,Shiller教授の心理学者との出会いが紹介されています。こちらもどうぞ。

via himaginaryの日記, N.Y. Times