CIRJE-J-270

『選好の逆転:解釈レ ベル理論に割引の概念を組み込んだ モデルによる分析』
"Preference Reversal: Analysis by Construal Level Theory that incorporates Discounting"

Author Name 阿部誠 (Makoto Abe)・守口剛(Takeshi Moriguchi)・八島明朗(Akira Yashima)
Date March 2015
Full Paper

PDF file (only Japanese version available)

Remarks  『行動経済学』 (行動経済学会)vol. 8 (2015年7月)所収。
Abstract (Japanese) Abstract (English)
行動経済学では,時間軸における選好の逆転現象を割引で説明する場合が多い.一方,心理学や行動意思決定理論の分野では,対象や出来事に対して感じる心理的距離の遠近によって精神的表象が異なると考える解釈レベル理論の枠組みで,選好の逆転を分析する研究が存在する.本研究では,割引の概念を解釈レベル理論に組み込むことによって,時間軸も含めてより一般的な心理的距離の変化による選好の逆転を説明,かつ予測できることを提唱する.具体例として,ロトの選択に関するアンケート調査において,このことを実証的に示す.

Construal level theory (CLT), which has been receiving increasing attention in Consumer Behavior Studies, posits that people’s evaluation toward items and incidents differs by the psychological distance between oneself and the object. When this distance is close, people mentally construe the object in terms of low-level, detailed, and contextualized features. In contrast, when the distance is far, they construe the same object in terms of high-level, abstract, and stable characteristics. Such difference in mental construal leads to different evaluation, preference, and behavior. In Behavioral Economics, preference reversal along time distance is called time inconsistency and has been studied mainly using “discounting”. This research proposes that, by introducing the notion of discounting into the construal level theory, a wider class of preference reversal along psychological distance beyond a time axis can be explained. Survey studies on peoples’ lottery choice are used to illustrate the points.