オオノ ヒロアキ ONO Hiroaki
大野 弘明
所属 明治学院大学 経済学部 国際経営学科
職種 教授
言語種別 英語
発行・発表の年月 2023/11/24
形態種別 【論文】研究論文(学術雑誌)<査読あり>
査読 査読あり
標題 Hyperbolic Discounting and State-Dependent Commitment
執筆形態 共著
掲載誌名 Economica
掲載区分 国内
出版社・発行元 Wiley-Blackwell, The London School of Economics and Political Science
巻・号・頁 Forthcoming
概要 In a stochastic economy with uninsurable endowment risk, we establish a condition under which hyperbolic-discounting consumers commit to a future consumption path using both illiquid assets and borrowing constraints as commitment devices. There is the possibility that a state-dependent commitment can be adopted as an equilibrium consumption strategy. On a path leading to low future endowment, the current self can commit to its own optimal consumption path, which is undesirable for future selves. In contrast, along the path with a high future endowment, the current self cannot make a commitment and must accept a consumption allocation that future selves will revise. Thus, depending on what stochastic state will arise, people cannot fully utilise the available commitment devices in risky situations.