エビナ　タケシ   EBINA TAKESHI   海老名　剛    所属   明治大学  商学部    職種   専任教授
言語種別	日本語
発行・発表の年月	2023/02
形態種別	学術雑誌
査読	査読あり
標題	"Paradox of Choice and Sharing Personal Information", AI & Society
執筆形態	共著(筆頭者)
掲載誌名	AI & Society
掲載区分	国外
出版社・発行元	Springer
巻・号・頁	38(1),121-132頁
担当区分	筆頭著者,責任著者
著者・共著者	Takeshi Ebina and Keita Kinjo
概要	The purpose of this study is to investigate the relationship between a firm's strategy and consumers' decisions in the presence of the paradox of choice and sharing personal information. A key feature of the model is its disutility function. It is demonstrated that if the sign of the cross derivative of the function is positive (negative) at the optimum, there is a positive (negative) correlation between the degree of sharing personal information chosen by the consumers and the number of products offered by the firm in its recommendation systems. It is also numerically indicated that the profit function of the firm becomes convex or concave depending on the shape of the disutility function. These results suggest that firms should carefully investigate the shape of the disutility function, under the paradox of choice and sharing personal information.
researchmap用URL	https://researchmap.jp/ebinatakeshi2010